Reasoning · framework

Use DeepSeek R1 with Vercel AI SDK

Updated 2026-05-21 · By XALEN

How to use DeepSeek R1 (Reasoning, 671B) with Vercel AI SDK. Install, authenticate, and make your first API call in minutes. Working code example included.

Model

DeepSeek R1

671B · 128K context · $0.08 input

Framework

Vercel AI SDK

framework · npm install ai @ai-sdk/openai

1. Install

npm install ai @ai-sdk/openai

2. Code

import { generateText } from 'ai';
import { createOpenAI } from '@ai-sdk/openai';

const xalen = createOpenAI({
  apiKey: 'xln_test_YOUR_KEY',
  baseURL: 'https://api.xalen.io/v1'
});

const { text } = await generateText({
  model: xalen('deepseek-r1'),
  prompt: 'What is DeepSeek R1?'
});
console.log(text);

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Last updated: 2026-05-21