diff --git a/google/genai/_interactions/types/audio_content.py b/google/genai/_interactions/types/audio_content.py
index 0bd815410..898847a83 100644
--- a/google/genai/_interactions/types/audio_content.py
+++ b/google/genai/_interactions/types/audio_content.py
@@ -45,6 +45,9 @@ class AudioContent(BaseModel):
             "audio/mpeg",
             "audio/m4a",
             "audio/l16",
+            "audio/opus",
+            "audio/alaw",
+            "audio/mulaw",
         ]
     ] = None
     """The mime type of the audio."""
diff --git a/google/genai/_interactions/types/audio_content_param.py b/google/genai/_interactions/types/audio_content_param.py
index 617374788..5f9d69074 100644
--- a/google/genai/_interactions/types/audio_content_param.py
+++ b/google/genai/_interactions/types/audio_content_param.py
@@ -48,6 +48,9 @@ class AudioContentParam(TypedDict, total=False):
         "audio/mpeg",
         "audio/m4a",
         "audio/l16",
+        "audio/opus",
+        "audio/alaw",
+        "audio/mulaw",
     ]
     """The mime type of the audio."""
 
diff --git a/google/genai/_interactions/types/content_delta.py b/google/genai/_interactions/types/content_delta.py
index 105e17cf2..415aef316 100644
--- a/google/genai/_interactions/types/content_delta.py
+++ b/google/genai/_interactions/types/content_delta.py
@@ -105,6 +105,9 @@ class DeltaAudio(BaseModel):
             "audio/mpeg",
             "audio/m4a",
             "audio/l16",
+            "audio/opus",
+            "audio/alaw",
+            "audio/mulaw",
         ]
     ] = None