Model switch messages now say whether your effort level is saved

After you switch models, the confirmation message now says whether the effort level you picked is saved

You'll noticeTier: how much it should matter to you

1Useful: my rating, 1 to 5

1Signal: worth watching, 1 to 5

ElsewhereArea: what it touches

ImprovementsKind: in v2.1.323, 12 Nov 26

ImprovementsSection of the release

What

Effort is how much work the model puts into each answer, and you can adjust it when you pick a model. The message shown after switching models with the picker shortcut now adds a note about effort. The message after /model now says whether the effort level is saved or isn't saved. Before, these messages only said "effort for this session only" or "with ... effort".

Why

It is now clearer whether the effort level you chose will still apply in your next session.

Read from

Names in the bundle/model

How sure we are

One source agreesOne thing we can check says the same as this entry.

Anthropic's release notes agreeFixed the model picker and /model showing a picked effort level that CLAUDE_CODE_EFFORT_LEVEL overrides

See this entry in the whole of v2.1.323 →

The build it came inv2.1.323

12 Nov 2026 · 888 entries, this one is #483.

Use it now77
You'll notice533
Nothing to try yet64
Under the hood214

Either side of it

v2.1.322Older

Open the release →

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

Anthropic's notes

Upstream's own release notes for v2.1.323 name something this entry names, so the two are probably about the same change. Probably: the pairing is made on a shared name rather than on the words around it.

Fixed the model picker and /model showing a picked effort level that CLAUDE_CODE_EFFORT_LEVEL overrides
Fixed the newest model's highlight missing from 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.

v2.1.295 /model now says when your default model could not be saved