Example

{
  "type": "session.start",
  "event_id": "evt_start_001",
  "session": {
    "model": "gpt-live-1",
    "instructions": "Help the caller plan a restaurant reservation. Confirm details before booking.",
    "audio": {
      "format": {
        "type": "audio/pcm",
        "rate": 24000
      },
      "output": {
        "voice": "marin"
      }
    },
    "delegation": {
      "type": "client"
    }
  }
}

session.update

Update the delegation settings of an active Live session. The server acknowledges accepted changes with session.updated.