Claude Opus 4.6 Support / Claude Code v2.1.32

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.

The build it came inv2.1.32

5 Feb 2026 · 15 entries, this one is #1.

Either side of it

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Names in this entry

slash/model
Switch the AI model and save it as your default for new sessions. For models that support it, use left/right arrows to adjust effort level. With no argument, opens a picker; press s on a row to switch for the current session only. See when Claude Code asks you to confirm the switch. Once you confirm the switch, if Claude Code asks, Claude Code applies the change without waiting for the current response to finish. Before v2.1.242, Claude Code decided from a feature flag it fetched from Anthropic whether to run the command mid-turn or queue it until the turn finished, and always queued it in a session that doesn't fetch feature flags, such as on a third-party provider. Also available in non-interactive mode (-p) with a model argument instead of the picker, where it applies to the current session only and isn't saved as your default; requires Claude Code v2.1.205 or later
cli--model
Sets the model for the current session with a model alias such as sonnet, opus, haiku, or fable, or a model's full name. Overrides the model setting and ANTHROPIC_MODEL
modelclaude-opus-4-6
Opus 5 is now the default Opus, with a 1M-context option in the model picker.

Is this right?

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