diff --git a/pkg/provider/anthropic/completer.go b/pkg/provider/anthropic/completer.go
index f1fc948..c8dbd07 100644
--- a/pkg/provider/anthropic/completer.go
+++ b/pkg/provider/anthropic/completer.go
@@ -122,7 +122,10 @@ func (c *Completer) completeStream(ctx context.Context, req anthropic.MessageNew
 
 		case anthropic.ContentBlockDeltaEvent:
 			delta := provider.Completion{
+				ID: message.ID,
+
 				Message: provider.Message{
+					Role:    provider.MessageRoleAssistant,
 					Content: event.Delta.Text,
 				},
 			}
diff --git a/pkg/provider/bedrock/completer.go b/pkg/provider/bedrock/completer.go
index 0453755..3a0e9b5 100644
--- a/pkg/provider/bedrock/completer.go
+++ b/pkg/provider/bedrock/completer.go
@@ -192,10 +192,12 @@ func (c *Completer) completeStream(ctx context.Context, req *bedrockruntime.Conv
 		case *types.ConverseStreamOutputMemberMessageStop:
 			reason := toCompletionResult(v.Value.StopReason)
 
-			if reason != "" {
-				result.Reason = reason
+			if reason == "" {
+				reason = provider.CompletionReasonStop
 			}
 
+			result.Reason = reason
+
 			delta := provider.Completion{
 				ID:     result.ID,
 				Reason: result.Reason,
@@ -206,10 +208,6 @@ func (c *Completer) completeStream(ctx context.Context, req *bedrockruntime.Conv
 				},
 			}
 
-			if delta.Reason == "" {
-				delta.Reason = provider.CompletionReasonStop
-			}
-
 			if err := options.Stream(ctx, delta); err != nil {
 				return nil, err
 			}