首次调用 API

* 出于与 OpenAI 兼容考虑，您也可以将 base_url 设置为 https://api.deepseek.com/v1 来使用，但注意，此处 v1 与模型版本无关。

* deepseek-chat 模型已全面升级为 DeepSeek-V3，接口不变。 通过指定 model='deepseek-chat' 即可调用 DeepSeek-V3。

* deepseek-reasoner 是 DeepSeek 最新推出的推理模型 DeepSeek-R1。通过指定 model='deepseek-reasoner'，即可调用 DeepSeek-R1。

调用对话 API

在创建 API key 之后，你可以使用以下样例脚本的来访问 DeepSeek API。样例为非流式输出，您可以将 stream 设置为 true 来使用流式输出。

curl

curl https://api.deepseek.com/chat/completions \

-H "Content-Type: application/json" \

-H "Authorization: Bearer " \

-d '{

"model": "deepseek-chat",

"messages": [

{"role": "system", "content": "You are a helpful assistant."},

{"role": "user", "content": "Hello!"}

],

"stream": false

}'

Python

# Please install OpenAI SDK first: `pip3 install openai`

from openai import OpenAI

client = OpenAI(api_key="", base_url="https://api.deepseek.com")

response = client.chat.completions.create(

model="deepseek-chat",

messages=[

{"role": "system", "content": "You are a helpful assistant"},

{"role": "user", "content": "Hello"},

],

stream=False

)

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

nodejs

// Please install OpenAI SDK first: `npm install openai`

import OpenAI from "openai";

const openai = new OpenAI({

baseURL: 'https://api.deepseek.com',

apiKey: ''

});

async function main() {

const completion = await openai.chat.completions.create({

messages: [{ role: "system", content: "You are a helpful assistant." }],

model: "deepseek-chat",

});

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

}

main();