diff --git a/sphinx/add_copyright_notice.py b/sphinx/add_copyright_notice.py
new file mode 100755
index 0000000..4cf560b
--- /dev/null
+++ b/sphinx/add_copyright_notice.py
@@ -0,0 +1,48 @@
+#!/usr/bin/env python3
+import os
+
+# Define the copyright notice
+COPYRIGHT_NOTICE = """\
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+"""
+
+
+def add_copyright_notice(file_path):
+    with open(file_path) as file:
+        content = file.read()
+
+    if (
+        COPYRIGHT_NOTICE.strip() not in content
+    ):  # Avoid adding the notice if it's already present
+        with open(file_path, "w") as file:
+            file.write(COPYRIGHT_NOTICE + "\n" + content)
+
+
+def recursively_add_notice_to_py_files(directory):
+    for root, _, files in os.walk(directory):
+        for file in files:
+            if file.endswith(".py"):
+                file_path = os.path.join(root, file)
+                add_copyright_notice(file_path)
+
+
+# Specify the directory you want to start the search from
+start_directory = "../src"  # Replace with your directory path
+
+recursively_add_notice_to_py_files(start_directory)
+
+print("Copyright notice added to all .py files.")
diff --git a/src/artkit/__init__.py b/src/artkit/__init__.py
index b9d5d07..a6fb108 100644
--- a/src/artkit/__init__.py
+++ b/src/artkit/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 This section of the documentation provides detailed information
 about the ARTKIT API, including descriptions of all classes, functions,
diff --git a/src/artkit/api.py b/src/artkit/api.py
index 8d4160b..b1d44cb 100644
--- a/src/artkit/api.py
+++ b/src/artkit/api.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Convenience module to import all classes and functions using single package alias.
 
diff --git a/src/artkit/flow.py b/src/artkit/flow.py
index 3b97954..576427a 100644
--- a/src/artkit/flow.py
+++ b/src/artkit/flow.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 This module provides a functional API for defining and executing
 complex and asynchronous workflows. The API is inspired by the functional programming
diff --git a/src/artkit/model/__init__.py b/src/artkit/model/__init__.py
index 02b82ae..ca034f4 100644
--- a/src/artkit/model/__init__.py
+++ b/src/artkit/model/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Gen AI model endpoints.
 
diff --git a/src/artkit/model/base/__init__.py b/src/artkit/model/base/__init__.py
index 15e602e..0848f7d 100644
--- a/src/artkit/model/base/__init__.py
+++ b/src/artkit/model/base/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Base classes for the LLM module.
 """
diff --git a/src/artkit/model/base/_adapter.py b/src/artkit/model/base/_adapter.py
index 3702b1d..34f310f 100644
--- a/src/artkit/model/base/_adapter.py
+++ b/src/artkit/model/base/_adapter.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of CachedLLM.
 """
diff --git a/src/artkit/model/base/_model.py b/src/artkit/model/base/_model.py
index 087e125..58873fb 100644
--- a/src/artkit/model/base/_model.py
+++ b/src/artkit/model/base/_model.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of llm module.
 """
diff --git a/src/artkit/model/cache/__init__.py b/src/artkit/model/cache/__init__.py
index 92b9b7a..c8d1f7c 100644
--- a/src/artkit/model/cache/__init__.py
+++ b/src/artkit/model/cache/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Caching for ARTKIT model connections.
 
diff --git a/src/artkit/model/cache/_cache.py b/src/artkit/model/cache/_cache.py
index e2448b3..4fad692 100644
--- a/src/artkit/model/cache/_cache.py
+++ b/src/artkit/model/cache/_cache.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Internal DB implementation for the cache.
 """
diff --git a/src/artkit/model/diffusion/__init__.py b/src/artkit/model/diffusion/__init__.py
index 3848f9c..3b2e9dc 100644
--- a/src/artkit/model/diffusion/__init__.py
+++ b/src/artkit/model/diffusion/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Diffusion model implementations (text-to-image generation)
 """
diff --git a/src/artkit/model/diffusion/base/__init__.py b/src/artkit/model/diffusion/base/__init__.py
index a3d426a..e6546c3 100644
--- a/src/artkit/model/diffusion/base/__init__.py
+++ b/src/artkit/model/diffusion/base/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Base classes for the diffusion model
 """
diff --git a/src/artkit/model/diffusion/base/_adapter.py b/src/artkit/model/diffusion/base/_adapter.py
index 201d2dc..aff65c7 100644
--- a/src/artkit/model/diffusion/base/_adapter.py
+++ b/src/artkit/model/diffusion/base/_adapter.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of the ``CachedDiffusionModel`` class.
 """
diff --git a/src/artkit/model/diffusion/base/_diffusion.py b/src/artkit/model/diffusion/base/_diffusion.py
index 33ee764..76a4c3b 100644
--- a/src/artkit/model/diffusion/base/_diffusion.py
+++ b/src/artkit/model/diffusion/base/_diffusion.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Base implementation of diffusion model
 """
diff --git a/src/artkit/model/diffusion/openai/__init__.py b/src/artkit/model/diffusion/openai/__init__.py
index 6b35de2..817dcda 100644
--- a/src/artkit/model/diffusion/openai/__init__.py
+++ b/src/artkit/model/diffusion/openai/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 OpenAI diffusion systems.
 """
diff --git a/src/artkit/model/diffusion/openai/_openai.py b/src/artkit/model/diffusion/openai/_openai.py
index 78ea5e9..5a3e65c 100644
--- a/src/artkit/model/diffusion/openai/_openai.py
+++ b/src/artkit/model/diffusion/openai/_openai.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of OpenAIDiffusion
 """
diff --git a/src/artkit/model/llm/__init__.py b/src/artkit/model/llm/__init__.py
index fbde824..e51c704 100644
--- a/src/artkit/model/llm/__init__.py
+++ b/src/artkit/model/llm/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Simple LLM adapter classes.
 """
diff --git a/src/artkit/model/llm/_cached.py b/src/artkit/model/llm/_cached.py
index 0aa26a4..0c23326 100644
--- a/src/artkit/model/llm/_cached.py
+++ b/src/artkit/model/llm/_cached.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of CachedLLM.
 """
diff --git a/src/artkit/model/llm/_gen2chat.py b/src/artkit/model/llm/_gen2chat.py
index 47c3893..fd528d7 100644
--- a/src/artkit/model/llm/_gen2chat.py
+++ b/src/artkit/model/llm/_gen2chat.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of ``ChatFromCompletionModel``.
 """
diff --git a/src/artkit/model/llm/_generator.py b/src/artkit/model/llm/_generator.py
index 8639230..5088e27 100644
--- a/src/artkit/model/llm/_generator.py
+++ b/src/artkit/model/llm/_generator.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of the text producer.
 """
diff --git a/src/artkit/model/llm/_historized.py b/src/artkit/model/llm/_historized.py
index 4e88529..80b91f5 100644
--- a/src/artkit/model/llm/_historized.py
+++ b/src/artkit/model/llm/_historized.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of ``HistorizedChatModel``.
 """
diff --git a/src/artkit/model/llm/anthropic/__init__.py b/src/artkit/model/llm/anthropic/__init__.py
index 38b7ddc..beda7bc 100644
--- a/src/artkit/model/llm/anthropic/__init__.py
+++ b/src/artkit/model/llm/anthropic/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Anthropic LLM systems.
 """
diff --git a/src/artkit/model/llm/anthropic/_anthropic.py b/src/artkit/model/llm/anthropic/_anthropic.py
index e656314..431f517 100644
--- a/src/artkit/model/llm/anthropic/_anthropic.py
+++ b/src/artkit/model/llm/anthropic/_anthropic.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of the Anthropic llm module.
 """
diff --git a/src/artkit/model/llm/base/__init__.py b/src/artkit/model/llm/base/__init__.py
index d22e9aa..45364da 100644
--- a/src/artkit/model/llm/base/__init__.py
+++ b/src/artkit/model/llm/base/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Base classes for the LLM module.
 """
diff --git a/src/artkit/model/llm/base/_adapter.py b/src/artkit/model/llm/base/_adapter.py
index 04de374..33df1de 100644
--- a/src/artkit/model/llm/base/_adapter.py
+++ b/src/artkit/model/llm/base/_adapter.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of CachedLLM.
 """
diff --git a/src/artkit/model/llm/base/_llm.py b/src/artkit/model/llm/base/_llm.py
index 3700b51..fee5a07 100644
--- a/src/artkit/model/llm/base/_llm.py
+++ b/src/artkit/model/llm/base/_llm.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of llm module.
 """
diff --git a/src/artkit/model/llm/gemini/__init__.py b/src/artkit/model/llm/gemini/__init__.py
index 249d396..4d59b6d 100644
--- a/src/artkit/model/llm/gemini/__init__.py
+++ b/src/artkit/model/llm/gemini/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Gemini LLM systems.
 """
diff --git a/src/artkit/model/llm/gemini/_gemini.py b/src/artkit/model/llm/gemini/_gemini.py
index 75f76c0..d17af58 100644
--- a/src/artkit/model/llm/gemini/_gemini.py
+++ b/src/artkit/model/llm/gemini/_gemini.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of the Gemini llm module.
 """
diff --git a/src/artkit/model/llm/groq/__init__.py b/src/artkit/model/llm/groq/__init__.py
index f1aa982..b233e61 100644
--- a/src/artkit/model/llm/groq/__init__.py
+++ b/src/artkit/model/llm/groq/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Groq LLM systems.
 """
diff --git a/src/artkit/model/llm/groq/_groq.py b/src/artkit/model/llm/groq/_groq.py
index 2c5527a..655d507 100644
--- a/src/artkit/model/llm/groq/_groq.py
+++ b/src/artkit/model/llm/groq/_groq.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of the Groq llm module.
 """
diff --git a/src/artkit/model/llm/history/__init__.py b/src/artkit/model/llm/history/__init__.py
index 8ec0744..a1f4e1f 100644
--- a/src/artkit/model/llm/history/__init__.py
+++ b/src/artkit/model/llm/history/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Classes related to chat history.
 """
diff --git a/src/artkit/model/llm/history/_history.py b/src/artkit/model/llm/history/_history.py
index f6e12f9..4520689 100644
--- a/src/artkit/model/llm/history/_history.py
+++ b/src/artkit/model/llm/history/_history.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of ``MyClass``.
 """
diff --git a/src/artkit/model/llm/history/_message.py b/src/artkit/model/llm/history/_message.py
index b396d46..eb06fb4 100644
--- a/src/artkit/model/llm/history/_message.py
+++ b/src/artkit/model/llm/history/_message.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of ``ChatMessage``.
 """
diff --git a/src/artkit/model/llm/huggingface/__init__.py b/src/artkit/model/llm/huggingface/__init__.py
index c46f41d..d4efbeb 100644
--- a/src/artkit/model/llm/huggingface/__init__.py
+++ b/src/artkit/model/llm/huggingface/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of Huggingface LLMs.
 """
diff --git a/src/artkit/model/llm/huggingface/_huggingface.py b/src/artkit/model/llm/huggingface/_huggingface.py
index ecbe789..3aa41d9 100644
--- a/src/artkit/model/llm/huggingface/_huggingface.py
+++ b/src/artkit/model/llm/huggingface/_huggingface.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Huggingface LLM systems.
 """
diff --git a/src/artkit/model/llm/huggingface/_huggingface_local.py b/src/artkit/model/llm/huggingface/_huggingface_local.py
index 2e70ea4..0e44d46 100644
--- a/src/artkit/model/llm/huggingface/_huggingface_local.py
+++ b/src/artkit/model/llm/huggingface/_huggingface_local.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Huggingface LLM systems that run locally.
 """
diff --git a/src/artkit/model/llm/huggingface/base/__init__.py b/src/artkit/model/llm/huggingface/base/__init__.py
index ad5ee43..5745b77 100644
--- a/src/artkit/model/llm/huggingface/base/__init__.py
+++ b/src/artkit/model/llm/huggingface/base/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Base classes for Huggingface LLMs.
 """
diff --git a/src/artkit/model/llm/huggingface/base/_base.py b/src/artkit/model/llm/huggingface/base/_base.py
index 7fed68c..b49a387 100644
--- a/src/artkit/model/llm/huggingface/base/_base.py
+++ b/src/artkit/model/llm/huggingface/base/_base.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Huggingface LLM systems.
 """
diff --git a/src/artkit/model/llm/multi_turn/__init__.py b/src/artkit/model/llm/multi_turn/__init__.py
index fb744a5..0b40d30 100644
--- a/src/artkit/model/llm/multi_turn/__init__.py
+++ b/src/artkit/model/llm/multi_turn/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Multi-turn conversation functions.
 """
diff --git a/src/artkit/model/llm/multi_turn/_multi_turn.py b/src/artkit/model/llm/multi_turn/_multi_turn.py
index ac37a26..db8b366 100644
--- a/src/artkit/model/llm/multi_turn/_multi_turn.py
+++ b/src/artkit/model/llm/multi_turn/_multi_turn.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of the multi-turn conversation attack.
 """
diff --git a/src/artkit/model/llm/openai/__init__.py b/src/artkit/model/llm/openai/__init__.py
index 72a253d..7388d53 100644
--- a/src/artkit/model/llm/openai/__init__.py
+++ b/src/artkit/model/llm/openai/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 OpenAI LLM systems.
 """
diff --git a/src/artkit/model/llm/openai/_openai.py b/src/artkit/model/llm/openai/_openai.py
index 1f2ac61..8e23b6f 100644
--- a/src/artkit/model/llm/openai/_openai.py
+++ b/src/artkit/model/llm/openai/_openai.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of llm module.
 """
diff --git a/src/artkit/model/llm/util/__init__.py b/src/artkit/model/llm/util/__init__.py
index b5b2c45..4205f89 100644
--- a/src/artkit/model/llm/util/__init__.py
+++ b/src/artkit/model/llm/util/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 LLM specific utilities
 """
diff --git a/src/artkit/model/llm/util/_json.py b/src/artkit/model/llm/util/_json.py
index 10862ee..11b589c 100644
--- a/src/artkit/model/llm/util/_json.py
+++ b/src/artkit/model/llm/util/_json.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of the `coerce_json_format` function, which uses an LLM to coerce a
 JSON-like string into the specified dictionary format. The function is used to
diff --git a/src/artkit/model/util/__init__.py b/src/artkit/model/util/__init__.py
index 311d9fb..a72ae8a 100644
--- a/src/artkit/model/util/__init__.py
+++ b/src/artkit/model/util/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Utilities making use of the model classes.
 """
diff --git a/src/artkit/model/util/_exception.py b/src/artkit/model/util/_exception.py
index badd6de..f92f99b 100644
--- a/src/artkit/model/util/_exception.py
+++ b/src/artkit/model/util/_exception.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 This file contains custom exception classes for the models.
 """
diff --git a/src/artkit/model/util/_retry.py b/src/artkit/model/util/_retry.py
index 97dfcf7..16dfef3 100644
--- a/src/artkit/model/util/_retry.py
+++ b/src/artkit/model/util/_retry.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 import asyncio
 import logging
 import random
diff --git a/src/artkit/model/vision/__init__.py b/src/artkit/model/vision/__init__.py
index ab7bc0d..ac07ac1 100644
--- a/src/artkit/model/vision/__init__.py
+++ b/src/artkit/model/vision/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Vision model implementations (image-to-text generation)
 """
diff --git a/src/artkit/model/vision/base/__init__.py b/src/artkit/model/vision/base/__init__.py
index c39bdb7..ce9272c 100644
--- a/src/artkit/model/vision/base/__init__.py
+++ b/src/artkit/model/vision/base/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Base classes for the vision model
 """
diff --git a/src/artkit/model/vision/base/_adapter.py b/src/artkit/model/vision/base/_adapter.py
index 65211e8..b4a921e 100644
--- a/src/artkit/model/vision/base/_adapter.py
+++ b/src/artkit/model/vision/base/_adapter.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of CachedVisionModel.
 """
diff --git a/src/artkit/model/vision/base/_vision.py b/src/artkit/model/vision/base/_vision.py
index 5fd51c2..ebe068a 100644
--- a/src/artkit/model/vision/base/_vision.py
+++ b/src/artkit/model/vision/base/_vision.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Base implementation of vision model
 """
diff --git a/src/artkit/model/vision/openai/__init__.py b/src/artkit/model/vision/openai/__init__.py
index 01fb9f5..7f83608 100644
--- a/src/artkit/model/vision/openai/__init__.py
+++ b/src/artkit/model/vision/openai/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 OpenAI vision model.
 """
diff --git a/src/artkit/model/vision/openai/_openai.py b/src/artkit/model/vision/openai/_openai.py
index fd5bf05..28a35bb 100644
--- a/src/artkit/model/vision/openai/_openai.py
+++ b/src/artkit/model/vision/openai/_openai.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of OpenAIVision
 """
diff --git a/src/artkit/util/__init__.py b/src/artkit/util/__init__.py
index 0e6e946..6aad06a 100644
--- a/src/artkit/util/__init__.py
+++ b/src/artkit/util/__init__.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Utility functions.
 """
diff --git a/src/artkit/util/_image.py b/src/artkit/util/_image.py
index 4342fd8..bc22622 100644
--- a/src/artkit/util/_image.py
+++ b/src/artkit/util/_image.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of the Image class for I/O handling of Vision and Diffusion models.
 """
diff --git a/src/artkit/util/_log_throttling.py b/src/artkit/util/_log_throttling.py
index cd08a0a..8eefb32 100644
--- a/src/artkit/util/_log_throttling.py
+++ b/src/artkit/util/_log_throttling.py
@@ -1,3 +1,19 @@
+# -----------------------------------------------------------------------------
+# © 2024 Boston Consulting Group. All rights reserved.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# -----------------------------------------------------------------------------
+
 """
 Implementation of ``LogThrottlingHandler``.
 """