The world’s largest mod site has settled the question of how to handle AI-generated content — and it has landed firmly in Valve’s corner. Nexus Mods will not ban AI mods. Instead, from this week, every upload must declare whether artificial intelligence touched the work, and existing mods have until 2 January 2027 to fall in line.
The policy arrives at a fraught moment. Modding communities have spent two years arguing about LLM-written scripts, AI-upscaled textures and generated promotional art, while host sites have struggled to keep any of it transparent. Nexus owner Victor ‘Foledinho’ Folmann says a prohibition was never going to work.
“An outright ban will not eliminate AI from the modding process but will prevent people from mentioning its use. We’d prefer the opposite; it should be out in the open, clearly labelled, and regulated according to the rules that we can implement on our platform.”
The three declarations every modder now faces
Starting immediately, anyone uploading to Nexus must tick a box classifying their work. “AI-generated” covers mods produced mostly by AI. “AI-assisted” is for human-led projects with limited machine help — texture upscaling, audio cleaning, code autocompletion. The third option declares the mod free of AI entirely. Authors choosing “AI-assisted” must also publish an explanation of exactly where and how the tools were used, and the site’s guidelines go further still: development history, version control commits and genuine understanding of one’s own code may all be demanded if a classification is disputed.
The tags will not hide in footnotes either. Nexus is moving them to display immediately after adult-content tags — the most prominent position on a mod page.
What Nexus promises in return
The pledge the community will scrutinise hardest: Nexus says it will never use mods to train AI, and will never sell or licence them to third parties who would. “We refused to do that in the past, and we will refuse to do so in the future,” Folmann wrote. New permission options also let authors decide whether outside parties may use their creations for AI training or forks, with the default set to “Ask Me” — meaning written permission is required.
Key point: The 60-day grace period runs from 3 November 2026 to 2 January 2027, and the rules apply to every mod on the site — including uploads from years ago whose authors have long since moved on.
Enforcement: what happens to rule-breakers?
Nexus is refreshingly honest that disclosure culture will be imperfect. “While we hope these changes will encourage everyone to disclose their AI usage, to be honest, that’s not going to happen,” Folmann admitted. The backstop is manual moderation backed by community reports, with consequences escalating from warnings to account restrictions and removal. The company concedes that identifying AI-generated content “is by no means an exact science” — some mods will be mislabelled, some will slip through, and reports are the only realistic safety net.
Why the Steam comparison matters
Valve took the same disclosure-first route on Steam, and the results have been messy but informative: labelled AI content coexists with human-made games, and players vote with their wallets. Nexus is betting modding can do the same — with the added wrinkle that its catalogue includes a decade of abandoned uploads that now all need declarations from authors who may have forgotten they ever modded at all.
The next two months will show whether transparency can be retrofitted to the largest mod archive on earth. If it works, expect every other host site to follow the template. If it collapses under its own backlog, the calls for an outright ban will only get louder.
