Model Overview
Anthropic · Active Model
- Long-Context
- API Available
- Production Ready
Claude Opus 4.1 is an updated version of Anthropic’s flagship model, offering improved performance in coding, reasoning, and agentic tasks. It achieves 74.5% on SWE-bench Verified and shows notable gains...
- Developer
- Anthropic
- Release Date
- August 5, 2025
- Context Window
- 200,000 tokens≈ 267 words
- API Access
- Publicly AvailableIntegrate via official API
- Input Cost
- $15.00per million tokens
- Output Cost
- $75.00per million tokens