Epic Games Is Using Generative AI In Fortnite To Make Mistakes
Epic Games has confirmed the use of generative AI tools in the development of Fortnite via a demonstration video. The company employs tools such as GenMedia and Nano Banana within Unreal Engine to produce characters, skins, and buildings, though the process frequently requires human artists to manually correct AI-generated errors to meet quality standards.
How is Epic Games using generative AI in Fortnite?
According to a company demonstration video, Epic Games developers use a tool called GenMedia to refine character renderings. In one instance, an artist prompted the AI to “clean up the rendering” of a character without changing the design, which resulted in the addition of unwanted details like a skeleton decoration on a belt pouch and an extra glove.

The company also utilizes an AI image generator and editor known as Nano Banana for environmental assets. This tool is used to prompt for “clean PBR render shots” and adjust perspective on buildings, though the video shows this process creates discrepancies in window placements and sign tower shapes that artists must then fix by hand.
Epic Games stated that the company maintains “continual reviews” before assets enter the game. The company claims artists track the provenance of their work and respect originality to ensure the final product meets high-quality standards.
Why is the adoption of AI tools controversial for Epic Games?
The admission comes six months after players accused Fortnite of using generative AI for in-game signage. Fans reported finding errors in those assets, including a depiction of a person with only nine toes and a clock featuring incorrect numbers.
Additionally, the company faced issues a year ago when players manipulated a generative AI version of Darth Vader to produce dialogue that was not Disney-friendly or appropriate for a “T for Teen” rated game.
What could happen next for Fortnite development?
The shift toward AI-assisted art may result in tighter production deadlines for the remaining staff. Because the company has reduced its headcount by 1,000 people, there is a possibility that fewer artists will be tasked with producing content at a faster rate.

This environment could lead to an increase in AI-generated errors slipping through the review process and appearing in the live game. Future updates may show more discrepancies in character models or environmental assets if the manual correction process fails to catch all “random mistakes” introduced by the software.
Frequently Asked Questions
Which specific AI tools is Epic Games using?
Epic Games is using GenMedia for character rendering and Nano Banana for building renders and perspective adjustments.
Did the AI tools eliminate the need for human artists?
No. The demonstration video shows that artists must still manually fix errors created by the AI, such as incorrect clothing details and structural discrepancies in buildings.
What previous AI errors have players reported in Fortnite?
Players previously identified signage featuring a person with nine toes and a clock with weird numbers, as well as an AI Darth Vader that spoke inappropriate dialogue.
Do you think generative AI can maintain the same artistic quality as fully human-made game assets?