diff --git a/docs/_static/llama-stack-spec.html b/docs/_static/llama-stack-spec.html
index 54d888441..24fde9054 100644
--- a/docs/_static/llama-stack-spec.html
+++ b/docs/_static/llama-stack-spec.html
@@ -8891,8 +8891,7 @@
                 },
                 "additionalProperties": false,
                 "required": [
-                    "role",
-                    "content"
+                    "role"
                 ],
                 "title": "OpenAIAssistantMessageParam",
                 "description": "A message containing the model's (assistant) response in an OpenAI-compatible chat completion request."
diff --git a/docs/_static/llama-stack-spec.yaml b/docs/_static/llama-stack-spec.yaml
index cf657bff9..27712ee74 100644
--- a/docs/_static/llama-stack-spec.yaml
+++ b/docs/_static/llama-stack-spec.yaml
@@ -6097,7 +6097,6 @@ components:
       additionalProperties: false
       required:
         - role
-        - content
       title: OpenAIAssistantMessageParam
       description: >-
         A message containing the model's (assistant) response in an OpenAI-compatible
diff --git a/llama_stack/apis/inference/inference.py b/llama_stack/apis/inference/inference.py
index 596efb136..309171f20 100644
--- a/llama_stack/apis/inference/inference.py
+++ b/llama_stack/apis/inference/inference.py
@@ -526,9 +526,9 @@ class OpenAIAssistantMessageParam(BaseModel):
     """
 
     role: Literal["assistant"] = "assistant"
-    content: OpenAIChatCompletionMessageContent
+    content: Optional[OpenAIChatCompletionMessageContent] = None
     name: Optional[str] = None
-    tool_calls: Optional[List[OpenAIChatCompletionToolCall]] = Field(default_factory=list)
+    tool_calls: Optional[List[OpenAIChatCompletionToolCall]] = None
 
 
 @json_schema_type