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Anthropic

Is Claude Opus 4.1 out? Yes, since August 5, 2025

Yes. Claude Opus 4.1 was released on August 5, 2025.

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Have you used it? Claude Opus 4.1

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Lab
Anthropic
Family
Claude
Release date
Source
Anthropic · Claude Opus 4.1

What changed

  • context 200k tokens · Context window of Claude Opus 4.1. Claude Opus 4 is the previous model of the same tier, but the gap is beyond what a percentage explains.
  • price $15.00 / MTok · Prompt price of Claude Opus 4.1. Claude Opus 4 is the previous model of the same tier, but the gap is beyond what a percentage explains.

About 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...

Next Claude model to watch

Questions

When was Claude Opus 4.1 released?
Claude Opus 4.1 was released on August 5, 2025.
Who makes Claude Opus 4.1?
Claude Opus 4.1 is made by Anthropic.
What comes after Claude Opus 4.1?
Claude Sonnet 4.5, released on September 29, 2025.