Response

{
  "id": "id",
  "audio": {
    "input": {
      "format": {
        "rate": 24000,
        "type": "audio/pcm"
      },
      "noise_reduction": {
        "type": "near_field"
      },
      "transcription": {
        "language": "language",
        "languages": [
          "string"
        ],
        "model": "whisper-1",
        "prompt": "prompt"
      },
      "turn_detection": {
        "prefix_padding_ms": 0,
        "silence_duration_ms": 0,
        "threshold": 0,
        "type": "type"
      }
    },
    "output": {
      "format": {
        "rate": 24000,
        "type": "audio/pcm"
      },
      "speed": 0,
      "voice": "ash"
    }
  },
  "expires_at": 0,
  "include": [
    "item.input_audio_transcription.logprobs"
  ],
  "instructions": "instructions",
  "max_output_tokens": "inf",
  "model": "model",
  "object": "object",
  "output_modalities": [
    "text"
  ],
  "tool_choice": "tool_choice",
  "tools": [
    {
      "description": "description",
      "name": "name",
      "parameters": {},
      "type": "function"
    }
  ],
  "tracing": "auto",
  "turn_detection": {
    "prefix_padding_ms": 0,
    "silence_duration_ms": 0,
    "threshold": 0,
    "type": "type"
  }
}

Example

curl -X POST https://api.openai.com/v1/realtime/sessions \
  -H "Authorization: Bearer $OPENAI_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-realtime",
    "modalities": ["audio", "text"],
    "instructions": "You are a friendly assistant."
  }'