Claude Opus 4.1
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...
The figures
- Made by
- Anthropic
- Model ID
- anthropic/claude-opus-4.1
- Input
- $15 per million tokens
- Output
- $75 per million tokens
- Context window
- 200K tokens
- Longest answer
- 32K tokens
- Takes in
- image, text, file
- Gives back
- text
- Reasoning
- Yes
- Tool calling
- Yes
- Reads images
- Yes
- Open weights
- No
- Released
- 5 Aug 2025
Read on 3 Oct 2026.