Short answer
GTA VI has not been confirmed for Game Pass. The game is announced for Xbox Series X|S, but that does not mean it is included with a subscription.
ImportantDo not subscribe for GTA VI alone unless Microsoft or Rockstar lists it in the catalogue.
What is confirmed
Rockstar lists a November 19, 2026 release for PS5 and Xbox Series X|S. Pre-orders are sold separately. The official GTA VI page and Rockstar announcements do not mention Game Pass.
What could change
Game Pass catalogues change over time, so an inclusion after release is possible in principle, but it is not a prediction or promise. This page will be updated only when Microsoft or Rockstar confirms it.
GTA 6 on Xbox: confirmed details →