Claude Opus 5
Claude Opus 5 is the latest model in Anthropic's Opus family and a step-change improvement over Opus 4.8. It delivers major gains over Opus 4.8 in agentic coding, professional knowledge work, and long-horizon reasoning, and it is stronger per token across effort levels. Your use subject to Anthropic's Terms & Privacy Policies.
Tool UseReasoningVision (Image)File InputExplicit CachingWeb SearchHas Fast Mode
index.ts
import { streamText } from 'ai'
const result = streamText({ model: 'anthropic/claude-opus-5', prompt: 'Why is the sky blue?'})More models by Anthropic
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