diff --git a/instructor/utils.py b/instructor/utils.py
index 088cebbaf..29effb9df 100644
--- a/instructor/utils.py
+++ b/instructor/utils.py
@@ -167,20 +167,36 @@ def update_total_usage(
         if isinstance(response_usage, AnthropicUsage) and isinstance(
             total_usage, AnthropicUsage
         ):
-            if not total_usage.cache_creation_input_tokens:
-                total_usage.cache_creation_input_tokens = 0
+            # update input_tokens / output_tokens
+            if hasattr(total_usage, "input_tokens") and hasattr(
+                response_usage, "input_tokens"
+            ):
+                total_usage.input_tokens += response_usage.input_tokens or 0
+            if hasattr(total_usage, "output_tokens") and hasattr(
+                response_usage, "output_tokens"
+            ):
+                total_usage.output_tokens += response_usage.output_tokens or 0
+
+            # Update cache_creation_input_tokens if both have that field
+            if hasattr(total_usage, "cache_creation_input_tokens") and hasattr(
+                response_usage, "cache_creation_input_tokens"
+            ):
+                if not total_usage.cache_creation_input_tokens:
+                    total_usage.cache_creation_input_tokens = 0
+                total_usage.cache_creation_input_tokens += (
+                    response_usage.cache_creation_input_tokens or 0
+                )
+
+            # Update cache_read_input_tokens if both have that field
+            if hasattr(total_usage, "cache_read_input_tokens") and hasattr(
+                response_usage, "cache_read_input_tokens"
+            ):
+                if not total_usage.cache_read_input_tokens:
+                    total_usage.cache_read_input_tokens = 0
+                total_usage.cache_read_input_tokens += (
+                    response_usage.cache_read_input_tokens or 0
+                )
 
-            if not total_usage.cache_read_input_tokens:
-                total_usage.cache_read_input_tokens = 0
-
-            total_usage.input_tokens += response_usage.input_tokens or 0
-            total_usage.output_tokens += response_usage.output_tokens or 0
-            total_usage.cache_creation_input_tokens += (
-                response_usage.cache_creation_input_tokens or 0
-            )
-            total_usage.cache_read_input_tokens += (
-                response_usage.cache_read_input_tokens or 0
-            )
             response.usage = total_usage
             return response
     except ImportError:
diff --git a/tests/llm/test_new_client.py b/tests/llm/test_new_client.py
index 5acf4e6a7..d20eb64d4 100644
--- a/tests/llm/test_new_client.py
+++ b/tests/llm/test_new_client.py
@@ -180,7 +180,6 @@ def test_client_anthropic_response():
     assert user.age == 10
 
 
-@pytest.mark.skip(reason="Skip for now")
 def test_client_anthropic_bedrock_response():
     client = anthropic.AnthropicBedrock(
         aws_access_key=os.getenv("AWS_ACCESS_KEY_ID"),
@@ -222,7 +221,6 @@ async def test_async_client_anthropic_response():
     assert user.age == 10
 
 
-@pytest.mark.skip(reason="Skip for now")
 @pytest.mark.asyncio
 async def test_async_client_anthropic_bedrock_response():
     client = anthropic.AsyncAnthropicBedrock(