how long has gta 6 been in development

GTA has been around for many years, with the first Grand Theft Auto game released in 1997. Since then, the series has grown into a long-running franchise, with later entries like GTA V releasing in 2013 and continuing to influence the genre through ongoing updates and re-releases. If your question is about a specific GTA title or a precise timeframe, I can zero in on that.