> ## Documentation Index
> Fetch the complete documentation index at: https://tikway.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# 全参数 JSON 示例

> Chat Completions 请求 Body 的字段结构参考。

下面展示当前非弃用顶层参数的 JSON 结构。

它是字段参考，**不是可直接提交的单个请求**。音频、Web Search、Structured Outputs、预测输出、采样参数和工具调用等能力会因模型而互斥或不受支持。

实际调用时，请只保留目标模型支持的字段。

```json theme={null}
{
  "model": "openai/gpt-5.6-terra",
  "messages": [
    {
      "role": "developer",
      "content": "你是一个严谨的旅行助手。"
    },
    {
      "role": "user",
      "content": [
        {
          "type": "text",
          "text": "根据图片安排一天的城市漫步路线。"
        },
        {
          "type": "image_url",
          "image_url": {
            "url": "https://example.com/city.jpg",
            "detail": "high"
          }
        }
      ]
    }
  ],
  "audio": {
    "format": "mp3",
    "voice": "alloy"
  },
  "frequency_penalty": 0,
  "logit_bias": {
    "123": -1
  },
  "logprobs": true,
  "max_completion_tokens": 800,
  "metadata": {
    "request_source": "documentation_example"
  },
  "modalities": ["text", "audio"],
  "n": 1,
  "parallel_tool_calls": false,
  "prediction": {
    "type": "content",
    "content": "路线标题："
  },
  "presence_penalty": 0,
  "prompt_cache_key": "travel-assistant-v1",
  "prompt_cache_options": {
    "mode": "implicit",
    "ttl": "30m"
  },
  "reasoning_effort": "medium",
  "response_format": {
    "type": "json_schema",
    "json_schema": {
      "name": "walking_plan",
      "description": "城市漫步路线",
      "strict": true,
      "schema": {
        "type": "object",
        "properties": {
          "title": { "type": "string" },
          "stops": {
            "type": "array",
            "items": { "type": "string" }
          }
        },
        "required": ["title", "stops"],
        "additionalProperties": false
      }
    }
  },
  "safety_identifier": "user_123456",
  "seed": 42,
  "service_tier": "auto",
  "stop": ["<END>"],
  "store": false,
  "stream": true,
  "stream_options": {
    "include_usage": true
  },
  "temperature": 0.7,
  "tool_choice": "auto",
  "tools": [
    {
      "type": "function",
      "function": {
        "name": "get_opening_hours",
        "description": "查询一个地点的营业时间。",
        "parameters": {
          "type": "object",
          "properties": {
            "place": {
              "type": "string",
              "description": "地点名称"
            }
          },
          "required": ["place"],
          "additionalProperties": false
        },
        "strict": true
      }
    }
  ],
  "top_logprobs": 2,
  "top_p": 1,
  "verbosity": "medium",
  "web_search_options": {
    "search_context_size": "medium"
  }
}
```

## 已弃用参数

以下官方字段仍可能出现在旧项目中，但新接入不建议使用：

```json theme={null}
{
  "max_tokens": 800,
  "functions": [],
  "function_call": "auto",
  "prompt_cache_retention": "24h",
  "user": "user_123456"
}
```

请分别替换为 `max_completion_tokens`、`tools`、`tool_choice`、`prompt_cache_options` 与 `safety_identifier`。