You can now access Claude Opus 4.1, a new model released today, using Vercel's AI Gateway with no other provider accounts required. This release from Anthropic improves agentic task execution, real-world coding, and reasoning over the previous Opus 4 model.

AI Gateway lets you call the model with a consistent unified API and just a single string update, track usage and cost, and configure performance optimizations, retries, and failover for higher than provider-average uptime.

To use it with the AI SDK v5, start by installing the package:

pnpm i ai

Then set the model to anthropic/claude-4.1-opus:

import { streamText } from 'ai'
const result = streamText({
  model: "anthropic/claude-4.1-opus",
  prompt: "what's the history of Taqueria La Cumbre in San Francisco?" 
})

Includes built-in observability, Bring Your Own Key support, and intelligent provider routing with automatic retries.

To deliver high performance and reliability to Claude Opus 4.1, AI Gateway leverages multiple model providers under the hood, including Anthropic and Bedrock.

Learn more about AI Gateway and view the new AI Gateway model leaderboard.