Is GTA 6 coming to PS4?
The direct answer
No. GTA 6 is a current-gen-only game — it launches on PlayStation 5 and Xbox Series X|S, with no PS4 version.
Rockstar confirmed GTA 6 for PS5 and Xbox Series X|S only. The last-gen PS4 and Xbox One are not supported, which is exactly why the game can push world density and visuals far beyond GTA 5.
This mirrors how Rockstar treated GTA 5 late in its life — the most detailed versions were the newer-hardware re-releases. To play GTA 6 at launch, a PS4 owner will need to upgrade to a PS5.