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DisclaimerUnofficial, and not affiliated with Anthropic. Nearly all of this is read straight out of what ships: npm bundles, captured prompts, published docs. Anthropic's own notes go in verbatim, marked as theirs. The rest is my reading, and every entry carries the strings behind it. If one looks wrong, vote it down and say why.

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Claude Code v2.1.32

Claude Opus 4.6 Support

What

Claude Opus 4.6 is now available as the most capable model for complex coding work, featuring a 1M token context window.

Usage
claude --model opus
# Or within a session:
/model
Details
  • Opus 4.6 with 1M context window supports longer sessions with large codebases
  • Uses rate limits faster than Sonnet
  • Available via /model command or --model opus flag
  • Model selection updated in plan mode: "Opus 4.6 in plan mode, Sonnet 4.5 otherwise"
  • First-party model ID: claude-opus-4-6
Evidence

Model definitions (search for "claude-opus-4-6" and "Opus 4.6")

Strings lifted out of the shipped bundle, so the claim above can be checked against them.

Related

Other releases about the same thing. Found by shared names or similar wording; neither means one caused the other.

See this entry in the whole of v2.1.32 →