id is rewritten to the gateway request ID and model to the public catalog ID; other fields follow the provider response.{
"id": "string",
"type": "message",
"role": "assistant",
"model": "openai/gpt-5-mini",
"content": [
{
"type": "string",
"property1": "string",
"property2": "string"
}
],
"stop_reason": "string",
"stop_sequence": "string",
"usage": {
"input_tokens": 0,
"output_tokens": 0,
"property1": "string",
"property2": "string"
},
"property1": "string",
"property2": "string"
}