AI Gateway

Claude Opus 4.1

anthropic/claude-opus-4.1

Claude Opus 4.1 is a drop-in replacement for Opus 4 that delivers superior performance and precision for real-world coding and agentic tasks. Opus 4.1 advances state-of-the-art coding performance to 74.5% on SWE-bench Verified, and handles complex, multi-step problems with more rigor and attention to detail.

index.ts
import { streamText } from 'ai'


const result = streamText({
  model: 'anthropic/claude-opus-4.1',
  prompt: 'Why is the sky blue?'
})