diff --git a/instructor/client_anthropic.py b/instructor/client_anthropic.py
index 9caf37cdc..d0e23590a 100644
--- a/instructor/client_anthropic.py
+++ b/instructor/client_anthropic.py
@@ -12,7 +12,6 @@ def from_anthropic(
         anthropic.Anthropic | anthropic.AnthropicBedrock | anthropic.AnthropicVertex
     ),
     mode: instructor.Mode = instructor.Mode.ANTHROPIC_TOOLS,
-    enable_prompt_caching: bool = False,
     beta: bool = False,
     **kwargs: Any,
 ) -> instructor.Instructor: ...
@@ -26,7 +25,6 @@ def from_anthropic(
         | anthropic.AsyncAnthropicVertex
     ),
     mode: instructor.Mode = instructor.Mode.ANTHROPIC_TOOLS,
-    enable_prompt_caching: bool = False,
     beta: bool = False,
     **kwargs: Any,
 ) -> instructor.AsyncInstructor: ...
diff --git a/instructor/utils.py b/instructor/utils.py
index efdb590a3..088cebbaf 100644
--- a/instructor/utils.py
+++ b/instructor/utils.py
@@ -167,6 +167,12 @@ 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
+
+            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 += (