Google retires Gemini Gems on November 17, replaced by slash-invoked skills

Google will shut down Gemini’s custom assistants — Gems, the 2024-launched preset roles like learning coach, coding partner and editor — on November 17, 2026, replacing them with “skills”: invoked by typing a slash in a task thread and usable across different AI tasks. Existing Gems convert to the skills format automatically, with no user action required. 9to5Google first reported the wind-down over the weekend.

The facts

• The date: Gems stop working as before after November 17, 2026.
• The replacement: skills, invoked via slash command inside a task thread and available across different AI tasks.
• Migration: automatic conversion of existing Gems; no manual steps.
• Context: TechCrunch frames the change against the all-in-one-agent race — Meta’s Muse and Instinct (fresh off a $1B Series C) are competing for the same entry point.

Our take

The “custom assistant” product shape is converging on skill packs, and Gemini’s move lands the same lesson the coding-agent side already learned: rather than maintaining a shelf of parallel mini-assistants, capabilities become slash commands inside the main surface. Users with Gems prompt assets don’t have to move anything — but it’s worth re-checking the migrated results after November 17, because automatic conversion usually runs fine and rarely preserves every detail.