Which real-life cities have inspired the major cities of GTA?

Rockstar Games knew they had an absolute goldmine on their hands with GTA 3 and its expansive open world.

Ranked: The World's Largest Cities By Population

Work in Progress) some of gta 5s real life locations. : r/GTAV

Grand Theft Auto 6 - Which locations were revealed in the major leak - RockstarINTEL

GTA Maps worst to best in my opinion : r/GTA

Los Santos hailed as GTA's greatest city by fans

GTA 5's open world map was so ahead of its time that it's no surprise people are still flocking to it 10 years later

GTA 6 Map: Leaks, Potential Size, Location, and More Details

Cities, GTA Wiki

Liberty City, GTA Wiki