Vercel Provider

The Vercel provider gives you access to the v0 API, designed for building modern web applications. The v0 models support text and image inputs and provide fast streaming responses.

You can create your Vercel API key at v0.dev.

Features

• Framework aware completions: Evaluated on modern stacks like Next.js and Vercel
• Auto-fix: Identifies and corrects common coding issues during generation
• Quick edit: Streams inline edits as they're available
• Multimodal: Supports both text and image inputs

Setup

The Vercel provider is available via the @ai-sdk/vercel module. You can install it with:

pnpm add @ai-sdk/vercel

Provider Instance

You can import the default provider instance vercel from @ai-sdk/vercel:

import { vercel } from '@ai-sdk/vercel';

If you need a customized setup, you can import createVercel from @ai-sdk/vercel and create a provider instance with your settings:

import { createVercel } from '@ai-sdk/vercel';

const vercel = createVercel({
  apiKey: process.env.VERCEL_API_KEY ?? '',
});

You can use the following optional settings to customize the Vercel provider instance:

• baseURL string

  Use a different URL prefix for API calls. The default prefix is https://api.v0.dev/v1.

• apiKey string

  API key that is being sent using the Authorization header. It defaults to the VERCEL_API_KEY environment variable.

• headers Record<string,string>

  Custom headers to include in the requests.

• fetch (input: RequestInfo, init?: RequestInit) => Promise<Response>

  Custom fetch implementation. Defaults to the global fetch function. You can use it as a middleware to intercept requests, or to provide a custom fetch implementation for e.g. testing.

Language Models

You can create language models using a provider instance. The first argument is the model ID, for example:

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

const { text } = await generateText({
  model: vercel('v0-1.0-md'),
  prompt: 'Create a Next.js AI chatbot',
});

Vercel language models can also be used in the streamText function (see AI SDK Core).

Models

v0-1.5-md

The v0-1.5-md model is for everyday tasks and UI generation.

v0-1.5-lg

The v0-1.5-lg model is for advanced thinking or reasoning.

v0-1.0-md (legacy)

The v0-1.0-md model is the legacy model served by the v0 API.

All v0 models have the following capabilities:

• Supports text and image inputs (multimodal)
• Supports function/tool calls
• Streaming responses with low latency
• Optimized for frontend and full-stack web development

Model Capabilities