如何获取 Grok 4.5 API Key（2026年7月）

from openai import OpenAI
import os

client = OpenAI(
    api_key=os.environ["XAI_API_KEY"],
    base_url="https://api.x.ai/v1",
)

response = client.chat.completions.create(
    model="grok-4.5",
    messages=[
        {"role": "system", "content": "You are a helpful assistant."},
        {"role": "user", "content": "Explain the V9 architecture of Grok 4.5 briefly."}
    ]
)

print(response.choices[0].message.content)

Python — 使用 OpenAI SDK，替换 base URL 指向 xAI

import OpenAI from "openai";

const client = new OpenAI({
  apiKey: process.env.XAI_API_KEY,
  baseURL: "https://api.x.ai/v1",
});

const response = await client.chat.completions.create({
  model: "grok-4.5",
  messages: [
    { role: "system", content: "You are a helpful assistant." },
    { role: "user", content: "What makes Grok 4.5 efficient for coding tasks?" }
  ]
});

console.log(response.choices[0].message.content);

JavaScript / Node.js — 与 Python 相同模式

curl https://api.x.ai/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer $XAI_API_KEY" \
  -d '{
    "model": "grok-4.5",
    "messages": [
      {"role": "user", "content": "Hello, Grok 4.5!"}
    ]
  }'

cURL — 快速验证 Key 是否正常工作