1---
2title: Vercel AI Gateway
3description: Reference for using Vercel AI Gateway with the AI SDK.
4---
5 
6# Vercel AI Gateway
7 
8The Vercel AI Gateway is the fastest way to get started with the AI SDK. It provides access to models from OpenAI, Anthropic, Google, and other providers through a single API.
9 
10## Authentication
11 
12Authenticate with OIDC (for Vercel deployments) or an [AI Gateway API key](https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai-gateway%2Fapi-keys&title=AI+Gateway+API+Keys):
13 
14```env filename=".env.local"
15AI_GATEWAY_API_KEY=your_api_key_here
16```
17 
18## Usage
19 
20The AI Gateway is the default global provider, so you can access models using a simple string:
21 
22```ts
23import { generateText } from 'ai';
24 
25const { text } = await generateText({
26  model: 'anthropic/claude-sonnet-4.5',
27  prompt: 'What is love?',
28});
29```
30 
31You can also explicitly import and use the gateway provider:
32 
33```ts
34// Option 1: Import from 'ai' package (included by default)
35import { gateway } from 'ai';
36model: gateway('anthropic/claude-sonnet-4.5');
37 
38// Option 2: Install and import from '@ai-sdk/gateway' package
39import { gateway } from '@ai-sdk/gateway';
40model: gateway('anthropic/claude-sonnet-4.5');
41```
42 
43## Find Available Models
44 
45**Important**: Always fetch the current model list before writing code. Never use model IDs from memory - they may be outdated.
46 
47List all available models through the gateway API:
48 
49```bash
50curl https://ai-gateway.vercel.sh/v1/models
51```
52 
53Filter by provider using `jq`. **Do not truncate with `head`** - always fetch the full list to find the latest models:
54 
55```bash
56# Anthropic models
57curl -s https://ai-gateway.vercel.sh/v1/models | jq -r '[.data[] | select(.id | startswith("anthropic/")) | .id] | reverse | .[]'
58 
59# OpenAI models
60curl -s https://ai-gateway.vercel.sh/v1/models | jq -r '[.data[] | select(.id | startswith("openai/")) | .id] | reverse | .[]'
61 
62# Google models
63curl -s https://ai-gateway.vercel.sh/v1/models | jq -r '[.data[] | select(.id | startswith("google/")) | .id] | reverse | .[]'
64```
65 
66When multiple versions of a model exist, use the one with the highest version number (e.g., prefer `anthropic/claude-sonnet-4.6` over `anthropic/claude-sonnet-4.5` over `claude-sonnet-4`).
67