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Anthropic

Is Claude Opus 4.5 out? Yes, since November 24, 2025

Yes. Claude Opus 4.5 was released on November 24, 2025.

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Have you used it? Claude Opus 4.5

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Lab
Anthropic
Family
Claude
Release date
Source
Anthropic · Claude Opus 4.5

What changed

  • context 200k tokens · Context window of Claude Opus 4.5. Claude Haiku 4.5 is the previous model of the same tier, but the gap is beyond what a percentage explains.
  • price $5.00 / MTok · Prompt price of Claude Opus 4.5. Claude Haiku 4.5 is the previous model of the same tier, but the gap is beyond what a percentage explains.

About Claude Opus 4.5

Claude Opus 4.5 is Anthropic’s frontier reasoning model optimized for complex software engineering, agentic workflows, and long-horizon computer use. It offers strong multimodal capabilities, competitive performance across real-world coding and...

Next Claude model to watch

Questions

When was Claude Opus 4.5 released?
Claude Opus 4.5 was released on November 24, 2025.
Who makes Claude Opus 4.5?
Claude Opus 4.5 is made by Anthropic.
What comes after Claude Opus 4.5?
Claude Opus 4.6, released on February 5, 2026.