diff --git a/letta/llm_api/anthropic_client.py b/letta/llm_api/anthropic_client.py
index 6d920b5d..322c6a5a 100644
--- a/letta/llm_api/anthropic_client.py
+++ b/letta/llm_api/anthropic_client.py
@@ -439,6 +439,7 @@ class AnthropicClient(LLMClientBase):
             llm_config.model.startswith("claude-3-7-sonnet")
             or llm_config.model.startswith("claude-sonnet-4")
             or llm_config.model.startswith("claude-opus-4")
+            or llm_config.model.startswith("claude-haiku-4-5")
         )
 
     @trace_method
diff --git a/letta/schemas/llm_config.py b/letta/schemas/llm_config.py
index bebfb950..2c2f4503 100644
--- a/letta/schemas/llm_config.py
+++ b/letta/schemas/llm_config.py
@@ -154,7 +154,10 @@ class LLMConfig(BaseModel):
             values["put_inner_thoughts_in_kwargs"] = False
 
         if values.get("model_endpoint_type") == "anthropic" and (
-            model.startswith("claude-3-7-sonnet") or model.startswith("claude-sonnet-4") or model.startswith("claude-opus-4")
+            model.startswith("claude-3-7-sonnet")
+            or model.startswith("claude-sonnet-4")
+            or model.startswith("claude-opus-4")
+            or model.startswith("claude-haiku-4-5")
         ):
             values["put_inner_thoughts_in_kwargs"] = False
 
@@ -242,7 +245,7 @@ class LLMConfig(BaseModel):
             config.model.startswith("claude-opus-4")
             or config.model.startswith("claude-sonnet-4")
             or config.model.startswith("claude-3-7-sonnet")
-            or config.model.startswith("claude-4-5-haiku")
+            or config.model.startswith("claude-haiku-4-5")
         )
 
     @classmethod