指定首碼續寫（Partial Mode）

import OpenAI from "openai";

const openai = new OpenAI({
    // 若沒有配置環境變數，請用阿里雲百鍊API Key將下行替換為：apiKey: "sk-xxx",
    apiKey: process.env.DASHSCOPE_API_KEY,
    // 以下為新加坡地區URL，調用時請將 {WorkspaceId} 替換為您的百鍊業務空間ID，各地區的URL不同。
    baseURL: "https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1"
});

// 定義需要補全的代碼首碼
const prefix = `def calculate_fibonacci(n):
    if n <= 1:
        return n
    else:
`;

const completion = await openai.chat.completions.create({
    model: "qwen3.8-max",  // 使用代碼模型
    messages: [
        { role: "user", content: "請補全這個斐波那契函數，勿添加其它內容" },
        { role: "assistant", content: prefix, partial: true }
    ],
});

// 手動拼接首碼和模型產生的內容
const generatedCode = completion.choices[0].message.content;
const completeCode = prefix + generatedCode;

console.log(completeCode);

{
    "choices": [
        {
            "message": {
                "content": "        return calculate_fibonacci(n-1) + calculate_fibonacci(n-2)",
                "role": "assistant"
            },
            "finish_reason": "stop",
            "index": 0,
            "logprobs": null
        }
    ],
    "object": "chat.completion",
    "usage": {
        "prompt_tokens": 48,
        "completion_tokens": 19,
        "total_tokens": 67,
        "prompt_tokens_details": {
            "cache_type": "implicit",
            "cached_tokens": 0
        }
    },
    "created": 1756800231,
    "system_fingerprint": null,
    "model": "qwen3.8-max",
    "id": "chatcmpl-d103b1cf-4bda-942f-92d6-d7ecabfeeccb"
}

import OpenAI from "openai";

const openai = new OpenAI({
  // 各地區的API Key不同。擷取API Key：https://www.alibabacloud.com/help/zh/model-studio/get-api-key
  // 若沒有配置環境變數，請用百鍊API Key將下行替換為：apiKey: "sk-xxx"
  apiKey: process.env.DASHSCOPE_API_KEY,
  // 以下為新加坡地區URL，調用時請將 {WorkspaceId} 替換為您的百鍊業務空間ID，各地區的URL不同。
  baseURL: "https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1"
});

async function main() {
    const response = await openai.chat.completions.create({
        model: "qwen3-vl-plus",
        messages: [
            {
                role: "user",
                content: [
                    {
                        type: "image_url",
                        image_url: {
                            "url": "https://img.alicdn.com/imgextra/i3/O1CN01zFX2Bs1Q0f9pESgPC_!!6000000001914-2-tps-450-450.png"
                        }
                    },
                    {
                        type: "text",
                        text: "我要發社交媒體，請幫我想一下文案。"
                    }
                ]
            },
            {
                role: "assistant",
                content: "今天發現了一家寶藏咖啡館",
                "partial": true
            }
        ]
    });
    console.log(response.choices[0].message.content);
}

main();

# ======= 重要提示 =======
# 以下為新加坡地區URL，調用時請將 {WorkspaceId} 替換為您的百鍊業務空間ID，各地區的URL不同。
# 各地區的API Key不同。擷取API Key：https://www.alibabacloud.com/help/zh/model-studio/get-api-key
# === 執行時請刪除該注釋 ===

curl -X POST 'https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1/chat/completions' \
-H "Authorization: Bearer $DASHSCOPE_API_KEY" \
-H 'Content-Type: application/json' \
-d '{
  "model": "qwen3-vl-plus",
  "messages": [
    {
      "role": "user",
      "content": [
        {
          "type": "image_url",
          "image_url": {
            "url": "https://img.alicdn.com/imgextra/i3/O1CN01zFX2Bs1Q0f9pESgPC_!!6000000001914-2-tps-450-450.png"
          }
        },
        {
          "type": "text",
          "text": "我要發社交媒體，請幫我想一下文案。"
        }
      ]
    },
    {
      "role": "assistant",
      "content": "今天發現了一家寶藏咖啡館",
      "partial": true
    }
  ]
}'

{
    "choices": [
        {
            "message": {
                "content": "，這款提拉米蘇簡直是味蕾的享受！每一口都是咖啡與奶油的完美融合，幸福感爆棚～ #美食分享 #提拉米蘇 #咖啡時光\n\n希望你喜歡這個文案！如果有任何修改需求，請隨時告訴我。",
                "role": "assistant"
            },
            "finish_reason": "stop",
            "index": 0,
            "logprobs": null
        }
    ],
    "object": "chat.completion",
    "usage": {
        "prompt_tokens": 282,
        "completion_tokens": 56,
        "total_tokens": 338,
        "prompt_tokens_details": {
            "cached_tokens": 0
        }
    },
    "created": 1756802933,
    "system_fingerprint": null,
    "model": "qwen3-vl-plus",
    "id": "chatcmpl-5780cbb7-ebae-9c63-b098-f8cc49e321f0"
}

import OpenAI from "openai";

const openai = new OpenAI({
    // 各地區的API Key不同。擷取API Key：https://www.alibabacloud.com/help/zh/model-studio/get-api-key
    // 若沒有配置環境變數，請用阿里雲百鍊API Key將下行替換為：apiKey: "sk-xxx",
    apiKey: process.env.DASHSCOPE_API_KEY,
    // 以下為新加坡地區URL，調用時請將 {WorkspaceId} 替換為您的百鍊業務空間ID，各地區的URL不同。
    baseURL: "https://{WorkspaceId}.ap-southeast-1.maas.aliyuncs.com/compatible-mode/v1"
});

async function chatCompletion(messages, maxTokens = null) {
    const completion = await openai.chat.completions.create({
        model: "qwen-plus",
        messages: messages,
        max_tokens: maxTokens
    });

    console.log(`###停止產生原因：${completion.choices[0].finish_reason}`);
    return completion.choices[0].message.content;
}

// 使用樣本
async function main() {
    let messages = [{"role": "user", "content": "請寫一個短篇科幻故事"}];

    try {
        // 第一輪調用，設定max_tokens為40
        const firstContent = await chatCompletion(messages, 40);
        console.log(firstContent);

        // 將第一輪的響應加入到assistant message，並設定partial=true
        messages.push({"role": "assistant", "content": firstContent, "partial": true});

        // 第二輪調用
        const secondContent = await chatCompletion(messages);
        console.log("###完整內容：");
        console.log(firstContent + secondContent);

    } catch (error) {
        console.error('執行出錯:', error);
    }
}

// 運行樣本
main();