Gemini Gems become skills in November, custom GPTs retire December 11

Google will convert Gems to skills for personal accounts starting November 2026, with Workspace in March 2027 and education in June 2027. OpenAI will retire custom GPTs on December 11, 2026, migrating instructions and files to plugins but dropping model choice, actions and sharing settings.

• Google: Gems to skills from November 2026, Workspace March 2027, education June 2027
• Skills do not support Canvas, Deep Research or GitHub-sourced files
• OpenAI: custom GPTs retire December 11, 2026, Enterprise February 11, 2027
• Migration drops model choice, custom actions and sharing settings