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Re:GPT-5.5 by simonw on Thursday April 23, 2026 @04:13PM (#47881177)
I set it up as a joke, to make fun of all of the other benchmarks. To my surprise it ended up being a surprisingly good measure of the quality of the model for other tasks (up to a certain point at least), though I've never seen a convincing argument as to why.

I gave a talk about it last year: https://simonwillison.net/2025/Jun/6/six-months-in-llms/

It should not be treated as a serious benchmark.

Re:GPT-5.5 by jimbokun on Thursday April 23, 2026 @04:43PM (#47881648)
What it has going for it is human interpretability.

Anyone can look and decide if it’s a good picture or not. But the numeric benchmarks don’t tell you much if you aren’t already familiar with that benchmark and how it’s constructed.

Re:GPT-5.5 by billywhizz on Friday April 24, 2026 @01:45PM (#47893513)
how can you say "it ended up being a surprisingly good measure of the quality of the model for other tasks" and also "It should not be treated as a serious benchmark" in the same comment?

if it is indeed a good measure of the quality of the model (hint: it's not) then, logically, it should be taken seriously.

this is, sadly, a great example of the kind of doublethink the "AI" hypesters (yes - whether you like it or not simon - that is what you are now) are all too capable of.

Re:GPT-5.5 by simonw on Friday April 24, 2026 @02:46PM (#47894286)
I genuinely don't see how those two statements conflict with each other.

Despite not being a serious benchmark (how could it be serious? It's a pelican riding a bicycle!) it still turned out to have some value. You can see that just by scrolling through the archives and watching it improve as the models improved.

If your definition of doublethink is "holding two conflicting ideas in your head at once" then I would say doublethink is a necessary skill for navigating the weird AI era we find ourselves inhabiting.

Re:GPT-5.5 by billywhizz on Friday April 24, 2026 @03:38PM (#47894835)
"some value" is not the same as "a surprisingly good measure of the quality of the model for other tasks".

doublethink does not mean holding two conflicting ideas in your head at once. it means holding two logically inconsistent positions/beliefs at the same time.