Claude Opus 4.1
5 August 2025
Claude Opus 4.1 from Anthropic, language,multimodal,vision model published 2025-08-05. Notable for: training cost.
Where it runs
| Provider | Model id | Context | Input | Output |
|---|---|---|---|---|
| OpenRouter | anthropic/claude-opus-4.1 | 200K | $15/M | $75/M |
Abstract
Today we're releasing Claude Opus 4.1, an upgrade to Claude Opus 4 on agentic tasks, real-world coding, and reasoning. We plan to release substantially larger improvements to our models in the coming weeks. Opus 4.1 is now available to paid Claude users and in Claude Code. It's also on our API, Amazon Bedrock, and Google Cloud's Vertex AI. Pricing is the same as Opus 4. Opus 4.1 advances our state-of-the-art coding performance to 74.5% on SWE-bench Verified. It also improves Claude’s in-depth research and data analysis skills, especially around detail tracking and agentic search.
Sources: Epoch AI, OpenRouter. This entry was generated from a dataset and has not been edited by hand.