Received 1007 invalid payload using Gemini Live API

Gemini API
,
1

Using gemini live API, I’m sending text data as per documentation:

await session.send_client_content( turns={"role": "user", "parts": [{"text": message}]}, turn_complete=True )
However, occasionally (5 out of 10 times) I’m getting invalid payload error when receiving data from gemini:

async for response in session.receive():

I am catching websocket ConnectionClosedError and logging it:

received 1007 invalid frame payload data) Request contains an invalid argument.; then sent 1007 (invalid frame payload data)

Request contains an invalid argument.

what am I doing wrong? The error also does not mentions which argument is invalid.

Is anyone else facing similar issue?

3

I am also facing the same issue. The conversation works for the first interaction but it throws this error from the next turn

5

This just started happening to me too, here’s the relevant excerpt from my logs:

received event LiveServerMessage { setupComplete: {} }
received event LiveServerMessage { serverContent: { outputTranscription: {} } }
received event LiveServerMessage {
  serverContent: { outputTranscription: { finished: true } }
}
live onclose clean? true code 1007 reason Request contains an invalid argument.

Latest JS SDK, no recent changes to my connection params or what I send to the model.

7

Did you ever resolve this?

9

I still haven’t found why is this happening or how to resolve this.

11

For model: gemini-live-2.5-flash-preview-native-audio
I found this : if response_modalities contains TEXT, this error will occur.
If response_modalities only contain AUDIO, this error will not happen.

If you use python google-genai, response_modalities is in genai.types.LiveConnectConfig, and will be used as client.aio.live.connect’s param, config.

if you use native websocket, the response_modalities will be send at first:
{
“setup”: {
“model”: MODEL,
“generation_config”: {
“response_modalities”: [“AUDIO”],
},
}
}

13

found the correct way to get both text and audio output from gemini-2.5-flash-preview-native-audio-dialog.

:white_check_mark: Working Solution

Don’t use response_modalities=["AUDIO", "TEXT"] - this causes errors.

Instead, use output_audio_transcription:

python

config = types.LiveConnectConfig(
    response_modalities=["AUDIO"],  # Audio only here
    output_audio_transcription=types.AudioTranscriptionConfig()  # This enables text
)

Then handle both outputs in your receive loop:

python

async for response in session.receive():
    # Text transcription
    if response.server_content and response.server_content.output_transcription:
        text = response.server_content.output_transcription.text
        display_subtitles(text)  # Perfect for subtitles!
    
    # Audio data
    if response.server_content and response.server_content.model_turn:
        for part in response.server_content.model_turn.parts:
            if part.audio and part.audio.data:
                play_audio(part.audio.data)

Hope this helps others facing the same issue!