Development delays for GTA 6 were largely caused by initial plans to work on GTA 6 alongside Red Dead Redemption 2, but Red Dead Redemption 2s scope expansion and leadership needs pushed GTA 6 back by years, resulting in a two-delay timeline amid uncertainty about the project's direction.

The game relies on traditional AI to control NPC behavior rather than ChatGPT-style generative AI, with substantial effort focused on making the relationship and interactions between the two main characters believable and dynamic based on player choices.

Rockstar has not disclosed an exact budget, but Bloomberg reports it as the most expensive game ever made due to its large workforce and long development; a rumored cost around $1.5 billion has been dismissed by publishing head Jennifer Kolbe.

Bloomberg suggested a potential release date of November 19, with a deep-dive by Jason Schreier examining cost, timeline, and technical challenges facing the project.

Complex characters contributed to delays, as Rockstar underestimated the time and staff needed to develop distinct NPC behaviors and believable romantic dynamics between Jason and Lucia; development head Phil Hooker said the team could meet the schedule, but not deliver the game they wanted.

An early codename, Project Americas, signaled initial plans to cover large parts of North and South America, before the scope was narrowed to Miami and the surrounding region.

Rockstars workforce has grown from about 2,441 employees across 12 offices in 2018 to around 4,711 employees, reflecting significant expansion even as the broader industry faced cuts.

GTA 6 is designed to be more realistic and grounded than GTA 5, drawing inspiration from Red Dead Redemption 2 while preserving chaotic moments and aiming to emotionally engage players through the two central characters, Jason and Lucia.

Bloombergs reporting emphasizes that the long development is driven by scale, detail, and player experience rather than meeting an initial timetable.