this post was submitted on 21 Apr 2026
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Malus, which is a piece of "satire" but also fully functional, performs a "clean room" clone of open source software, meaning users could then sell, redistribute, etc. the software without crediting the original developers. But I have a hard time with the "clean room" argument since the LLM doing the behind-the-scenes work has already ingested the entire corpus of open source software -- and somehow the output of the LLMs isn't considered a derivative work.

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[โ€“] madnificent@lemmy.world 5 points 1 week ago (1 children)

Could link to your reasoning and/or summarise it here? Thanks.

[โ€“] grue@lemmy.world 15 points 1 week ago* (last edited 1 week ago)
  • The GPL requires that derivative works must also be licensed under the GPL.
  • LLMs are trained on GPL code.
  • LLM output is a derivative work of the training data (especially if it's asked to replicate one of the works it's trained on!).
  • Therefore, all LLM output is either also GPL, or if it's also been trained on stuff with conflicting licensing, just straight-up copyright infringement to use at all no matter what.

Laundering copyright is what LLMs do. It is fundamental to how they function, which means that they are a fundamentally illegal technology.