diff --git a/pydantic_ai_slim/pydantic_ai/models/google.py b/pydantic_ai_slim/pydantic_ai/models/google.py
index fa35191278..a6d9d0e577 100644
--- a/pydantic_ai_slim/pydantic_ai/models/google.py
+++ b/pydantic_ai_slim/pydantic_ai/models/google.py
@@ -254,6 +254,7 @@ async def count_tokens(
                     stop_sequences=generation_config.get('stop_sequences'),
                     presence_penalty=generation_config.get('presence_penalty'),
                     frequency_penalty=generation_config.get('frequency_penalty'),
+                    seed=generation_config.get('seed'),
                     thinking_config=generation_config.get('thinking_config'),
                     media_resolution=generation_config.get('media_resolution'),
                     response_mime_type=generation_config.get('response_mime_type'),
@@ -397,6 +398,7 @@ async def _build_content_and_config(
             stop_sequences=model_settings.get('stop_sequences'),
             presence_penalty=model_settings.get('presence_penalty'),
             frequency_penalty=model_settings.get('frequency_penalty'),
+            seed=model_settings.get('seed'),
             safety_settings=model_settings.get('google_safety_settings'),
             thinking_config=model_settings.get('google_thinking_config'),
             labels=model_settings.get('google_labels'),
diff --git a/pydantic_ai_slim/pydantic_ai/settings.py b/pydantic_ai_slim/pydantic_ai/settings.py
index f3d515ae69..cc87ba4a37 100644
--- a/pydantic_ai_slim/pydantic_ai/settings.py
+++ b/pydantic_ai_slim/pydantic_ai/settings.py
@@ -94,6 +94,7 @@ class ModelSettings(TypedDict, total=False):
     * Groq
     * Cohere
     * Mistral
+    * Gemini
     """
 
     presence_penalty: float