MessagesRequest

Standard Anthropic Messages body. The gateway validates only that the body is a JSON object with a
non-empty model; the provider validates the rest. Other Anthropic fields are passed through.

{
    "model": "openai/gpt-5-mini",
    "max_tokens": 0,
    "messages": [
        {
            "property1": "string",
            "property2": "string"
        }
    ],
    "system": null,
    "temperature": 0,
    "tools": [
        {
            "property1": "string",
            "property2": "string"
        }
    ],
    "tool_choice": {
        "property1": "string",
        "property2": "string"
    },
    "stream": true,
    "extra": {
        "fallbacks": [
            "openai/gpt-5-mini"
        ]
    },
    "property1": "string",
    "property2": "string"
}