安装
npm install openai
基础对话
import OpenAI from 'openai';
const client = new OpenAI({
apiKey: 'sk-xxx',
baseURL: 'https://crazyrouter.com/v1',
});
async function main() {
const response = await client.chat.completions.create({
model: 'gpt-5.4',
messages: [
{ role: 'system', content: '你是一个有帮助的助手。' },
{ role: 'user', content: '用一句话解释什么是 Node.js' },
],
});
console.log(response.choices[0].message.content);
}
main();
流式输出
async function streamChat() {
const stream = await client.chat.completions.create({
model: 'gpt-5.4',
messages: [{ role: 'user', content: '写一首关于编程的诗' }],
stream: true,
});
for await (const chunk of stream) {
const content = chunk.choices[0]?.delta?.content || '';
process.stdout.write(content);
}
console.log();
}
streamChat();
连续对话
const messages = [
{ role: 'system', content: '你是一个 JavaScript 专家。' },
];
async function chat(userInput) {
messages.push({ role: 'user', content: userInput });
const response = await client.chat.completions.create({
model: 'gpt-5.4',
messages,
});
const reply = response.choices[0].message.content;
messages.push({ role: 'assistant', content: reply });
return reply;
}
async function main() {
console.log(await chat('什么是 Promise?'));
console.log(await chat('和 async/await 有什么区别?'));
}
main();
CommonJS 用法
const OpenAI = require('openai');
const client = new OpenAI({
apiKey: 'sk-xxx',
baseURL: 'https://crazyrouter.com/v1',
});
client.chat.completions
.create({
model: 'gpt-5.4',
messages: [{ role: 'user', content: '你好' }],
})
.then((res) => console.log(res.choices[0].message.content));
以上示例默认使用 2026 年 3 月 23 日已在生产环境实测成功的
gpt-5.4。如果你需要切换模型,优先改成同样已验证的 claude-sonnet-4-6 或 gemini-3-pro-preview,再根据场景继续扩展。