Re: Common Lisp with no AI (that's ironic I suppose)

Hi Brett,

You're seriously suggesting you would stop using SBCL if it contained any
LLM-generated code whatsoever, no matter how thoroughly tested and
painstakingly reviewed?  I think that's silly.  Everyone here knows that
LLMs can screw up, just like us humans, and that all submissions need to be
thoroughly vetted.  Though I'm not on the SBCL team, I have complete
confidence that everything they accept into the code base will be of the
highest possible quality.  That's how they've done things for 20+ years,
and there's no reason it would change now.

Two things are happening rapidly: LLMs are getting better at programming,
and people are learning how to get better work out of them.  The attitude
you are taking has been defensible until very recently, but I think it no
longer is, or won't be for long.

-- Scott


On Thu, Feb 26, 2026 at 9:18 PM Brett Mahar <[email protected]> wrote:

> Hi SBCL,
>
> As someone just getting back into using Lisp I find it a bit sad to see
> the AI "slop" or whatever you would like to call it apparently being
> accepted. I don't contribute any code so its not up to me but I can vote
> with my feet, any suggestion of Lisp implementation that has a
> zero-tolerance policy?
>
> Not trying to troll just seeking inside information, anyone know how
> Carnegie Mellon's version is holding out?
>
> One thing that I think has been overlooked in the recent "should AI be
> allowed?" thread was: how about the copyright? How can the "author" grant
> copyright when they did not write the code? I'm not a lawyer but from what
> I understand the answer is "they can't" and Microsoft or Google or whoever
> can issue an injunction at any moment, or 10 years down the track when 5000
> more commits have been done on top of the work of various agents and humans.
>
> I suppose for the professional programmers there is an attraction to using
> AI in terms of creating a digital footprint of work done "collaboratively"
> but I also suppose a lot of people will stop using SBCL  ̄\\_(ツ)_/ ̄ . I
> have seen a few fediverse posts and blog posts to that effect, one person
> saying they are so disheartened they are considering taking all the Common
> Lisp repos down.
>
> Cheers,
> Brett.
>
>
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>

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