diff --git a/google/genai/_interactions/types/model.py b/google/genai/_interactions/types/model.py
index 21e29a8a8..4efa518b5 100644
--- a/google/genai/_interactions/types/model.py
+++ b/google/genai/_interactions/types/model.py
@@ -31,6 +31,7 @@
         "gemini-2.5-flash-image-preview",
         "gemini-2.5-pro-preview-tts",
         "gemini-3-pro-preview",
+        "gemini-3-flash-preview",
     ],
     str,
 ]
diff --git a/google/genai/_interactions/types/model_param.py b/google/genai/_interactions/types/model_param.py
index d0e6abdd3..c674dbfcf 100644
--- a/google/genai/_interactions/types/model_param.py
+++ b/google/genai/_interactions/types/model_param.py
@@ -33,6 +33,7 @@
         "gemini-2.5-flash-image-preview",
         "gemini-2.5-pro-preview-tts",
         "gemini-3-pro-preview",
+        "gemini-3-flash-preview",
     ],
     str,
 ]