Open Source is an idea more than it is a set of specs, and that idea is now incompatible with AI, according to the moderators of the r/opensource subreddit.
“The long story short, if your project uses AI, is made by AI, or is intended for AI, it’s not welcome on r/opensource. AI, as it exists today, is incongruent to this Open Source community,” wrote moderator Wolvereness on Saturday, in a post spotted by the Verge.
The new batch of subreddit rules Wolvereness announced says projects posted to r/opensource must not make obvious use of AI. “Tokens are cheap, and we don’t care how many you spent to make your amazing project,” the post explains. Another rule says a project must not be “intended for AI,” meaning no human-written AI model context protocols (MCPs) or other AI-adjacent projects.
Wolvereness’ post also includes rules unrelated to AI, such as bans on posts from users who don’t speak English, projects less than a year old, and posts from Reddit accounts less than a year old.
As many on both the pro- and anti-AI sides have already pointed out, projects thought of as core to the open source movement now make use of AI coding, which arguably makes this subreddit an outlier. For instance, open source pioneer Linus Torvalds announced that he used Claude Code to write for Linux kernel earlier this month.
With Reddit banning open-source projects that have ANY AI contributions, here's a list of projects you can no longer discuss there:
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