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Anthropic · model release

Claude Opus 4.8

Anthropic releases Opus 4.8, with more control over effort and big-task tools in Claude Code.

In detail

Anthropic released Claude Opus 4.8, built on Opus 4.7 at the same price, with an effort control on claude.ai, a dynamic workflows feature in Claude Code and a cheaper fast mode.

Sources

  1. Introducing Claude Opus 4.8 · Anthropic · Primary source
  2. Claude Developer Platform release notes · Anthropic · Primary source

Last checked 11 November 2026.

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