2026 年 DeepSeek R1 API 接入指南：国内最强推理模型怎么调用

pip install openai

from openai import OpenAI

client = OpenAI(
    api_key="sk-你的CrazyrouterKey",
    base_url="https://crazyrouter.com/v1"
)

response = client.chat.completions.create(
    model="deepseek-r1",
    messages=[
        {"role": "user", "content": "证明：对于所有正整数 n，1+2+3+...+n = n(n+1)/2"}
    ]
)

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

from openai import OpenAI

client = OpenAI(
    api_key="sk-你的CrazyrouterKey",
    base_url="https://crazyrouter.com/v1"
)

response = client.chat.completions.create(
    model="deepseek-r1",
    messages=[
        {"role": "user", "content": """
一个水池有两个进水管和一个出水管。
单独开 A 管 3 小时可以注满水池，
单独开 B 管 5 小时可以注满水池，
单独开出水管 4 小时可以放空水池。
如果三个管同时打开，多久可以注满水池？
"""}
    ],
    max_tokens=4000
)

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

from openai import OpenAI

client = OpenAI(
    api_key="sk-你的CrazyrouterKey",
    base_url="https://crazyrouter.com/v1"
)

stream = client.chat.completions.create(
    model="deepseek-r1",
    messages=[
        {"role": "user", "content": "用动态规划解决背包问题，给出完整的 Python 代码和复杂度分析"}
    ],
    stream=True
)

for chunk in stream:
    if chunk.choices[0].delta.content is not None:
        print(chunk.choices[0].delta.content, end="", flush=True)

import OpenAI from 'openai';

const client = new OpenAI({
  apiKey: 'sk-你的CrazyrouterKey',
  baseURL: 'https://crazyrouter.com/v1',
});

async function main() {
  const stream = await client.chat.completions.create({
    model: 'deepseek-r1',
    messages: [
      { role: 'user', content: '实现一个 B+ 树，用 TypeScript，包含插入和查找操作' },
    ],
    stream: true,
  });

  for await (const chunk of stream) {
    const content = chunk.choices[0]?.delta?.content || '';
    process.stdout.write(content);
  }
}

main();

curl https://crazyrouter.com/v1/chat/completions \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer sk-你的CrazyrouterKey" \
  -d '{
    "model": "deepseek-r1",
    "messages": [
      {"role": "user", "content": "解释 P=NP 问题为什么重要"}
    ],
    "max_tokens": 4000
  }'

# ✅ 直接问就行
messages = [{"role": "user", "content": "求解方程 x^3 - 6x^2 + 11x - 6 = 0"}]

# ❌ 不需要这样
messages = [{"role": "user", "content": "请一步步思考，求解方程 x^3 - 6x^2 + 11x - 6 = 0"}]

response = client.chat.completions.create(
    model="deepseek-r1",
    messages=[
        {"role": "system", "content": "你是一个资深算法工程师。请用 Python 实现，包含完整的类型注解、文档字符串和单元测试。"},
        {"role": "user", "content": "实现一个线程安全的 LRU Cache，支持 TTL 过期"}
    ],
    max_tokens=4000
)

# 复杂推理任务 → DeepSeek R1
response = client.chat.completions.create(
    model="deepseek-r1",
    messages=[{"role": "user", "content": "复杂的数学证明题..."}]
)

# 日常对话/简单任务 → DeepSeek V4-Pro（更快更强）
response = client.chat.completions.create(
    model="deepseek-v4-pro",
    messages=[{"role": "user", "content": "帮我写一封邮件..."}]
)