Solo developer races to build GTA 6 clone with AI agents before Rockstar's November launch
After 13 years of waiting for GTA 6, Ziwen Xu decided to build his own version using AI agents. The 25-year-old founder of Hyperecho launched GT-Caliber on June 10, creating an open-source GTA clone with daily updates. The chaotic development saw him switch engines three times in nine days, accidentally build Los Angeles instead of Miami, and crash his Mac—but the project reveals both AI's potential and its limitations in game development.