Rockstar has not announced how much storage Grand Theft Auto VI requires on PlayStation 5 or Xbox Series X|S. The 150 GB figure you see repeated online is a community estimate, not a number from the PlayStation Store, Xbox Store, or Rockstar’s own materials.
For context, GTA V’s expanded and enhanced edition on PS5 and Xbox Series X|S asks for around 105 GB. GTA 6 is built on a newer engine with a much larger map, so the final size will almost certainly exceed that, possibly by a wide margin. But until Rockstar lists the requirement on the store pages, any specific number is speculation.
One thing to keep in mind: GTA 6 is digital-only, no physical disc. That means you need the full install on your console’s internal SSD. If you are on a base PS5 or Xbox Series S with limited storage, plan ahead. The game releases worldwide on November 19, 2026, and preorders opened June 25, 2026. Store listings will likely update with the exact size closer to launch, so check the price page before you clear your drive.