文字补全（OpenAI 兼容协议）

curl https://api.littlecold.cn/v1/chat/completions \
  -H "Authorization: Bearer $LITTLEAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "gpt-5.5",
    "messages": [
      {"role": "system", "content": "You are a helpful assistant."},
      {"role": "user", "content": "你好！"}
    ],
    "stream": false
  }'

from openai import OpenAI

client = OpenAI(
    api_key="$LITTLEAPI_KEY",
    base_url="https://api.littlecold.cn/v1",
)

resp = client.chat.completions.create(
    model="gpt-4o-mini",
    messages=[{"role": "user", "content": "你好！"}],
)
print(resp.choices[0].message.content)

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.LITTLEAPI_KEY,
  baseURL: "https://api.littlecold.cn/v1",
});

const resp = await client.chat.completions.create({
  model: "gpt-4o-mini",
  messages: [{ role: "user", content: "你好！" }],
});
console.log(resp.choices[0].message.content);