---
title: OpenAI Chat Completions | RunAPI
description: 透過 RunAPI 相容 OpenAI 的 Chat Completions 操作傳送請求。
url: https://runapi.ai/zh-TW/docs/api/openai/chat-completions.md
canonical: https://runapi.ai/zh-TW/docs/api/openai/chat-completions
locale: zh-TW
---

> HTML 版本: https://runapi.ai/zh-TW/docs/api/openai/chat-completions
> 代理程式網站索引: https://runapi.ai/llms.txt

# OpenAI Chat Completions

## 概覽

使用 RunAPI 的 OpenAI 相容「Chat Completions」操作，搭配相容的模型及該協定的請求與回應格式。

### 快速入門

1. 建立 API 金鑰並將其設定為 RUNAPI_API_KEY。
2. 選擇相容的模型，然後傳送文件中指定的路徑參數與 JSON 本文。
3. 讀取此操作顯示的 JSON 回應或伺服器傳送事件，並處理協定錯誤。

## 端點

POST /v1/chat/completions

基礎 URL: https://runapi.ai

合約版本: v1

建議的身分驗證方式: Authorization: Bearer YOUR_API_TOKEN

## 身分驗證載體

RunAPI 接受以下列出的每種傳輸協定。產生的範例使用該協定偏好的標頭。

- `Authorization: Bearer YOUR_API_TOKEN` (建議)
- `x-api-key: YOUR_API_TOKEN`
- `x-goog-api-key: YOUR_API_TOKEN`
- `?key=YOUR_API_TOKEN`

## 相容模型

開啟模型頁面以查看目前的定價、速率限制及商業用途詳情。

- [claude-fable-5-1](https://runapi.ai/zh-TW/models/claude)
- [claude-fable-5](https://runapi.ai/zh-TW/models/claude)
- [claude-sonnet-5](https://runapi.ai/zh-TW/models/claude)
- [claude-opus-5](https://runapi.ai/zh-TW/models/claude)
- [claude-opus-4-8](https://runapi.ai/zh-TW/models/claude)
- [claude-opus-4-7](https://runapi.ai/zh-TW/models/claude)
- [claude-opus-4-6](https://runapi.ai/zh-TW/models/claude)
- [claude-sonnet-4-6](https://runapi.ai/zh-TW/models/claude)
- [claude-opus-4-5-20251101](https://runapi.ai/zh-TW/models/claude)
- [claude-sonnet-4-5-20250929](https://runapi.ai/zh-TW/models/claude)
- [claude-haiku-4-5-20251001](https://runapi.ai/zh-TW/models/claude)
- [claude-opus-4-1-20250805](https://runapi.ai/zh-TW/models/claude)
- [gpt-5.5](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.5-pro](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.4](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.4-mini](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.4-nano](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.4-pro](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.3-codex](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.3-codex-spark](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.2](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.6-luna](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.6-sol](https://runapi.ai/zh-TW/models/gpt)
- [gpt-5.6-terra](https://runapi.ai/zh-TW/models/gpt)
- [gpt-6-astra](https://runapi.ai/zh-TW/models/gpt)
- [gemini-3.7-flash](https://runapi.ai/zh-TW/models/gemini)
- [gemini-3.6-flash](https://runapi.ai/zh-TW/models/gemini)
- [gemini-3.5-flash](https://runapi.ai/zh-TW/models/gemini)
- [gemini-3.1-pro-preview](https://runapi.ai/zh-TW/models/gemini)
- [gemini-3-flash-preview](https://runapi.ai/zh-TW/models/gemini)
- [gemini-2.5-pro](https://runapi.ai/zh-TW/models/gemini)
- [gemini-2.5-flash](https://runapi.ai/zh-TW/models/gemini)
- [deepseek-v4-flash-vision-exp](https://runapi.ai/zh-TW/models/deepseek)
- [deepseek-v4-pro](https://runapi.ai/zh-TW/models/deepseek)
- [deepseek-v4-flash](https://runapi.ai/zh-TW/models/deepseek)
- [glm-5.3](https://runapi.ai/zh-TW/models/glm)
- [glm-5.2](https://runapi.ai/zh-TW/models/glm)
- [glm-5.1](https://runapi.ai/zh-TW/models/glm)
- [glm-5-turbo](https://runapi.ai/zh-TW/models/glm)
- [glm-5](https://runapi.ai/zh-TW/models/glm)
- [glm-4.7](https://runapi.ai/zh-TW/models/glm)
- [glm-4.6](https://runapi.ai/zh-TW/models/glm)
- [glm-4.5](https://runapi.ai/zh-TW/models/glm)
- [glm-4.5-air](https://runapi.ai/zh-TW/models/glm)
- [kimi-k3](https://runapi.ai/zh-TW/models/kimi)
- [kimi-k2.7-code](https://runapi.ai/zh-TW/models/kimi)
- [kimi-k2.6](https://runapi.ai/zh-TW/models/kimi)
- [kimi-k2.5](https://runapi.ai/zh-TW/models/kimi)
- [MiniMax-M3](https://runapi.ai/zh-TW/models/minimax)
- [MiniMax-M2.7](https://runapi.ai/zh-TW/models/minimax)
- [MiniMax-M2.7-highspeed](https://runapi.ai/zh-TW/models/minimax)
- [MiniMax-M2.5](https://runapi.ai/zh-TW/models/minimax)
- [MiniMax-M2.5-highspeed](https://runapi.ai/zh-TW/models/minimax)
- [MiniMax-M2.1](https://runapi.ai/zh-TW/models/minimax)
- [MiniMax-M2](https://runapi.ai/zh-TW/models/minimax)
- [mimo-v2.5-pro](https://runapi.ai/zh-TW/models/mimo)
- [mimo-v2.5](https://runapi.ai/zh-TW/models/mimo)
- [grok-4.20-0309-non-reasoning](https://runapi.ai/zh-TW/models/grok)
- [grok-4.5](https://runapi.ai/zh-TW/models/grok)
- [grok-4.3](https://runapi.ai/zh-TW/models/grok)

## 請求合約

僅列出同時具備公開協定與 RunAPI 支援依據的欄位。其他 JSON 本文欄位將直接傳遞。

### JSON 主體

必填: `model`, `messages`

```json
{
  "max_tokens": {
    "description": "為支援模型保留的相容性生成 token 上限；模型支援情況可能有所不同。",
    "type": [
      "integer",
      "null"
    ]
  },
  "messages": {
    "description": "OpenAI Chat Completions 格式的對話訊息。",
    "items": {
      "additionalProperties": true,
      "properties": {
        "content": {
          "type": [
            "string",
            "array"
          ]
        },
        "role": {
          "type": "string"
        }
      },
      "required": [
        "role"
      ],
      "type": "object"
    },
    "type": "array"
  },
  "model": {
    "description": "由相容模型目錄回傳的 RunAPI 模型識別碼。",
    "type": "string"
  },
  "stream": {
    "default": false,
    "description": "以伺服器傳送事件的形式回傳 Chat Completions 資料區塊。",
    "type": [
      "boolean",
      "null"
    ]
  },
  "temperature": {
    "description": "取樣溫度；模型支援程度可能有所不同。",
    "type": [
      "number",
      "null"
    ]
  },
  "tools": {
    "description": "模型可呼叫的工具。",
    "type": "array"
  },
  "top_p": {
    "description": "Nucleus 取樣機率；模型支援程度可能有所不同。",
    "type": [
      "number",
      "null"
    ]
  }
}
```

### 請求範例

```json
{
  "messages": [
    {
      "content": "Summarize one practical improvement for an API deployment.",
      "role": "user"
    }
  ],
  "model": "gpt-5.4",
  "stream": false
}
```

## 同步回應

HTTP 200

### 結構描述

```json
{
  "additionalProperties": true,
  "properties": {
    "choices": {
      "type": "array"
    },
    "created": {
      "type": "integer"
    },
    "id": {
      "type": "string"
    },
    "model": {
      "type": "string"
    },
    "object": {
      "const": "chat.completion",
      "type": "string"
    },
    "usage": {
      "additionalProperties": true,
      "properties": {
        "completion_tokens": {
          "type": "integer"
        },
        "prompt_tokens": {
          "type": "integer"
        },
        "total_tokens": {
          "type": "integer"
        }
      },
      "required": [
        "prompt_tokens",
        "completion_tokens",
        "total_tokens"
      ],
      "type": "object"
    }
  },
  "required": [
    "id",
    "object",
    "created",
    "model",
    "choices"
  ],
  "type": "object"
}
```

### 範例

```json
{
  "choices": [
    {
      "finish_reason": "stop",
      "index": 0,
      "message": {
        "content": "Hello! How can I help today?",
        "role": "assistant"
      }
    }
  ],
  "created": 1785196800,
  "id": "chatcmpl_example",
  "model": "gpt-5.4",
  "object": "chat.completion",
  "usage": {
    "completion_tokens": 8,
    "prompt_tokens": 12,
    "total_tokens": 20
  }
}
```

## SSE 事件：chunk

媒體類型: `text/event-stream`

### 結構描述

```json
{
  "additionalProperties": true,
  "properties": {
    "choices": {
      "type": "array"
    },
    "created": {
      "type": "integer"
    },
    "id": {
      "type": "string"
    },
    "model": {
      "type": "string"
    },
    "object": {
      "const": "chat.completion.chunk",
      "type": "string"
    },
    "usage": {
      "oneOf": [
        {
          "additionalProperties": true,
          "properties": {
            "completion_tokens": {
              "type": "integer"
            },
            "prompt_tokens": {
              "type": "integer"
            },
            "total_tokens": {
              "type": "integer"
            }
          },
          "required": [
            "prompt_tokens",
            "completion_tokens",
            "total_tokens"
          ],
          "type": "object"
        },
        {
          "type": "null"
        }
      ]
    }
  },
  "required": [
    "id",
    "object",
    "choices"
  ],
  "type": "object"
}
```

### 範例

```json
{
  "choices": [
    {
      "delta": {
        "content": "Hello"
      },
      "finish_reason": null,
      "index": 0
    }
  ],
  "id": "chatcmpl_example",
  "object": "chat.completion.chunk",
  "usage": null
}
```

## 協定錯誤：invalid_request

HTTP 400

### 結構描述

```json
{
  "additionalProperties": true,
  "properties": {
    "error": {
      "additionalProperties": true,
      "properties": {
        "code": {
          "type": [
            "string",
            "null"
          ]
        },
        "message": {
          "type": "string"
        },
        "param": {
          "type": [
            "string",
            "null"
          ]
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "message",
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "error"
  ],
  "type": "object"
}
```

### 範例

```json
{
  "error": {
    "code": null,
    "message": "messages is required",
    "param": "messages",
    "type": "invalid_request_error"
  }
}
```

## 用量

### 結構描述

```json
{
  "additionalProperties": true,
  "properties": {
    "completion_tokens": {
      "type": "integer"
    },
    "prompt_tokens": {
      "type": "integer"
    },
    "total_tokens": {
      "type": "integer"
    }
  },
  "required": [
    "prompt_tokens",
    "completion_tokens",
    "total_tokens"
  ],
  "type": "object"
}
```

### 範例

```json
{
  "completion_tokens": 8,
  "prompt_tokens": 12,
  "total_tokens": 20
}
```

## 產生的程式碼範例

每個 cURL、JavaScript 和 Python 範例均會從此契約傳送經驗證的請求，無需特定協定的 SDK。

### curl

```curl
curl -X POST https://runapi.ai/v1/chat/completions \
  -H Authorization:\ Bearer\ YOUR_API_TOKEN \
  -H Content-Type:\ application/json \
  -d \{\"model\":\"gpt-5.4\",\"messages\":\[\{\"role\":\"user\",\"content\":\"Summarize\ one\ practical\ improvement\ for\ an\ API\ deployment.\"\}\],\"stream\":false\}
```

### javascript

```javascript
const response = await fetch("https://runapi.ai/v1/chat/completions", {
  method: "POST",
  headers: {
  "Authorization": "Bearer YOUR_API_TOKEN",
  "Content-Type": "application/json"
},
  body: JSON.stringify({
  "model": "gpt-5.4",
  "messages": [
    {
      "role": "user",
      "content": "Summarize one practical improvement for an API deployment."
    }
  ],
  "stream": false
})
});
if (!response.ok) throw new Error(`HTTP ${response.status}`);
const data = await response.json();
console.log(data);
```

### python

#### 安裝

```bash
pip install requests
```

```python
import requests

response = requests.post(
    "https://runapi.ai/v1/chat/completions",
    headers={"Authorization": "Bearer YOUR_API_TOKEN", "Content-Type": "application/json"},
    json={"model": "gpt-5.4", "messages": [{"role": "user", "content": "Summarize one practical improvement for an API deployment."}], "stream": False}
)
response.raise_for_status()
print(response.json())
```

## 相關指南

- [身分驗證](https://runapi.ai/zh-TW/docs/guides/authentication.md)
- [快速入門](https://runapi.ai/zh-TW/docs/guides/llm-api/quickstart.md)

---

## RunAPI 的更多內容

- [首頁](https://runapi.ai/zh-TW/.md)
- [模型目錄](https://runapi.ai/zh-TW/models.md)
- [價格](https://runapi.ai/zh-TW/pricing.md)
- [提供商](https://runapi.ai/zh-TW/models)
- [文件](https://runapi.ai/zh-TW/docs/guides)
- [SDK](https://runapi.ai/zh-TW/sdk.md)
- [CLI](https://runapi.ai/zh-TW/cli.md)
- [MCP Server](https://runapi.ai/zh-TW/mcp.md)
- [Claude Code 與 Cursor](https://runapi.ai/zh-TW/claude-code-vs-cursor.md)
- [Cursor API 設定](https://runapi.ai/zh-TW/cursor-api-setup.md)
- [RunAPI 與 OpenRouter](https://runapi.ai/zh-TW/openrouter-alternative.md)
- [企業版](https://runapi.ai/zh-TW/contact.md)
- [聯絡我們](https://runapi.ai/zh-TW/contact.md)
- [服務條款](https://runapi.ai/zh-TW/terms.md)
- [隱私權](https://runapi.ai/zh-TW/privacy.md)
- [代理程式網站索引](https://runapi.ai/llms.txt)

聯絡我們: contact@runapi.ai

## 結構化資料

```json
[
  {
    "@context": "https://schema.org",
    "inLanguage": "zh-TW",
    "@type": "WebSite",
    "name": "RunAPI",
    "url": "https://runapi.ai/zh-TW",
    "potentialAction": {
      "@type": "SearchAction",
      "target": {
        "@type": "EntryPoint",
        "urlTemplate": "https://runapi.ai/zh-TW/models?q={search_term_string}"
      },
      "query-input": "required name=search_term_string"
    }
  },
  {
    "@context": "https://schema.org",
    "inLanguage": "zh-TW",
    "@type": "Organization",
    "name": "RunAPI",
    "url": "https://runapi.ai/zh-TW",
    "logo": {
      "@type": "ImageObject",
      "url": "https://runapi.ai/zh-TWicon.svg"
    },
    "sameAs": [
      "https://github.com/runapi-ai"
    ]
  },
  {
    "@context": "https://schema.org",
    "inLanguage": "zh-TW",
    "@type": "TechArticle",
    "headline": "OpenAI Chat Completions",
    "description": "透過 RunAPI 相容 OpenAI 的 Chat Completions 操作傳送請求。",
    "url": "https://runapi.ai/zh-TW/docs/api/openai/chat-completions",
    "mainEntityOfPage": "https://runapi.ai/zh-TW/docs/api/openai/chat-completions"
  }
]
```