The /model command description is now dynamic, displaying the currently active model: "Set the AI model for Claude Code (currently Claude Sonnet 4.6)" instead of the previous static "Set the AI model for Claude Code".
Evidence
Changed from static description: to get description() getter (search for "Set the AI model for Claude Code (currently")
Strings lifted out of the shipped bundle, so the claim above can be checked against them.
How sure we are
One source agreesOne thing we can check says the same as this entry.
Anthropic's release notes agreeImproved /model command to show the currently active model in the slash command menu