Update app.py

app.py

@@ -104,7 +104,7 @@ def get_mp3(text: str, voice: str, api_key: str = None) -> bytes:
     )
 
     with client.audio.speech.with_streaming_response.create(
-        model="tts-1-hd",
+        model="tts-1",
         voice=voice,
         input=text,
     ) as response: