Is it free software? [LWN.net]

Is it free software?

Posted Feb 25, 2026 9:51 UTC (Wed) by farnz (subscriber, #17727)
In reply to: Is it free software? by rgmoore
Parent article: The Book of Remind

The case of concern is more around how the legalities wind up shaking out.

It's easy to imagine a scenario in which the AI model is not itself responsible for infringement, nor is it inherently a derived work, and where liability therefore falls on a mix of the AI vendor and the user.

In that world, the big copyright holders are in a strong position to negotiate a deal with the AI vendor, where the AI vendor is paying for licensing for "minor" infringement, and passes details of "deliberately" infringing prompts and outputs to the big copyright holders for legal enforcement.

That's a worst case for FOSS. We're not big copyright holders, so we don't get into the deals for "minor" infringement and "deliberate" infringement. But our output is still used to train the models, and to make the AIs profitable - meaning that it's now on us to find the people infringing our copyright, and pursue them in court (giving them the option of bringing the AI vendor in as a contributor to their infringement) to stop AI becoming just another way to infringe FOSS copyrights without significant risk.

The history of FOSS licence enforcement (or rather, the lack thereof in most cases) does not fill me with hope here - the cost of blanket enforcement is high, and that's what's needed to make the AI vendors worry about the risk of infringing our copyrights.

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Is it free software?

Posted Feb 26, 2026 11:15 UTC (Thu) by kleptog (subscriber, #1183) [Link] (4 responses)

I'm a bit confused about what kind of infringement you're worried about?

Are you worried that somebody could use an LLM to "vibe-code" a competitor to PostgreSQL while it not looking like PostgreSQL, purely because the source is in the training set? What FOSS is out there that people would like to copy, don't feel like they can just get away with it but figure they can use an LLM to get around it?

What you are referring to with big companies I do see as a thing for purely creative works. To prevent LLMs and Stable Diffusion from producing video clips with X-Wing fighters and Mickey Mouse. Though to me it this feels more trademark than copyright related. ISTM non-commerical stuff should be allowed anyway.

But the value of copyright on source code has always been a bit weird. Code is mostly functional. For any given problem there really are only a few good solutions. Sure, you can split the functions up in different ways, the variables can have different names, you can use a different language. If you want to write a new program, in almost always you are not doing anything new, just doing what other people have done before, but framed in a different way.

The GPL is mostly a political tool. We don't care if the FreeBSD guys want to take the source of some driver the make a better driver for FreeBSD. Most of the code in the kernel is useless in any other context. We care that someone takes the Linux kernel as a whole. The tool we are given is copyright law, so we have the GPL.

If someone takes an algorithm in the Linux kernel and uses it in their own product, that's not copyright infringement. ISTM LLMs will mostly take the functional structure and ignore the literal text. There where their value is after all.

But maybe there is some risk to FOSS from LLMs that I'm missing. I'm just not seeing it.

Is it free software?

Posted Feb 26, 2026 11:19 UTC (Thu) by farnz (subscriber, #17727) [Link] (3 responses)

If all free software is in the training set, and the output of the LLM is effectively not copyright protected (because it's too expensive to prove), then things like OpenWRT would never have happened, because you could avoid the problem with GPL licensing by having the LLM "vibe-code" an entire router OS, instead of copying Linux.

It's not a new risk. But if you're looking at LLMs as "they will obliterate copyright walls", I think you're barking up the wrong tree; I expect them to be bad for small copyright holders (since proving copying becomes harder), but not big ones.

Is it free software?

Posted Feb 27, 2026 12:27 UTC (Fri) by taladar (subscriber, #68407) [Link] (2 responses)

At least right now it is hard to get an LLM to move a function from the file foo/bar to the file foo/baz without modification but a hypothetical future AI based on a different fundamental concept might be usable that way.

Is it free software?

Posted Feb 27, 2026 12:32 UTC (Fri) by farnz (subscriber, #17727) [Link] (1 responses)

For someone abusing LLMs to "copyright-wash" infringement, that modification is a feature, not a bug. The copying is no longer literal, so it makes it harder to show that copying took place, while as long as the modifications don't introduce too many new bugs, you can refer back to the original and fix them (or ignore them if they're irrelevant to your product - if you're building a WiFi router, and the bugs relate to DCCP NAT, "just" don't support that).

Is it free software?

Posted Feb 27, 2026 12:58 UTC (Fri) by taladar (subscriber, #68407) [Link]

In the specific case I had in mind the LLM just kept changing APIs back from the version of a library I was using to the version of the same library that was current when it was trained (bevy 0.17 -> 0.14) which was incredibly annoying.