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Re:GLM-5: From Vibe Coding to Agentic Engineering by btown on Wednesday February 11, 2026 @01:01PM (#46978441)
Thank you for continuing to maintain the only benchmarking system that matters!

Context for the unaware: https://simonwillison.net/tags/pelican-riding-a-bicycle/

Re:GLM-5: From Vibe Coding to Agentic Engineering by l_eo on Wednesday February 11, 2026 @03:55PM (#46980796)
They will start to max this benchmark as well at some point.
Re:GLM-5: From Vibe Coding to Agentic Engineering by ljm on Wednesday February 11, 2026 @05:25PM (#46982106)
It's not a benchmark though, right? Because there's no control group or reference.

It's just an experiment on how different models interpret a vague prompt. "Generate an SVG of a pelican riding a bicycle" is loaded with ambiguity. It's practically designed to generate 'interesting' results because the prompt is not specific.

It also happens to be an example of the least practical way to engage with an LLM. It's no more capable of reading your mind than anyone or anything else.

I argue that, in the service of AI, there is a lot of flexibility being created around the scientific method.

Re:GLM-5: From Vibe Coding to Agentic Engineering by tylervigen on Wednesday February 11, 2026 @05:32PM (#46982182)
For 2026 SOTA models I think that is fair.

For the last generation of models, and for today's flash/mini models, I think there is still a not-unreasonable binary question ("is this a pelican on a bicycle?") that you can answer by just looking at the result: https://simonwillison.net/2024/Oct/25/pelicans-on-a-bicycle/

Re:GLM-5: From Vibe Coding to Agentic Engineering by interstice on Wednesday February 11, 2026 @05:36PM (#46982232)
So if it can generate exactly what you had in mind based presumably on the most subtle of cues like your personal quirks from a few sentences that could be _terrifying_, right?
Re:GLM-5: From Vibe Coding to Agentic Engineering by vidarh on Thursday February 12, 2026 @02:58AM (#46986044)
RLHF (reinforcement learning from human feedback) is to a large extent about resolving that ambiguity by simply polling people for their subjective judgement.

I've worked one an RLHF project for one of the larger model providers, and the instructions provided to the reviewers were very clear that if there was no objective correct answer, they were still required to choose the best answer, and while there were of course disagreements in the margins, groups of people do tend to converge on the big lines.

Re:GLM-5: From Vibe Coding to Agentic Engineering by 9dev on Thursday February 12, 2026 @06:19AM (#46987379)
Simon has written a page specifically for you: https://simonwillison.net/2025/nov/13/training-for-pelicans-...
Re:GLM-5: From Vibe Coding to Agentic Engineering by gabiruh on Wednesday February 11, 2026 @02:38PM (#46979767)
It's interesting how some features, such as green grass, a blue sky, clouds, and the sun, are ubiquitous among all of these models' responses.
Re:GLM-5: From Vibe Coding to Agentic Engineering by btown on Wednesday February 11, 2026 @04:44PM (#46981543)
If you were a pelican, wouldn't you want to go cycling on a sunny day?

Do electric pelicans dream of touching electric grass?

Re:GLM-5: From Vibe Coding to Agentic Engineering by Magniquick on Wednesday February 11, 2026 @10:37PM (#46984631)
Do electric pelicans dream of touching electric grass?

That would be shocking news to me.

Re:GLM-5: From Vibe Coding to Agentic Engineering by davidwritesbugs on Thursday February 12, 2026 @02:49AM (#46985975)
Please leave the Internet :)
Re:GLM-5: From Vibe Coding to Agentic Engineering by derefr on Wednesday February 11, 2026 @04:49PM (#46981599)
It is odd, yeah.

I'm guessing both humans and LLMs would tend to get the "vibe" from the pelican task, that they're essentially being asked to create something like a child's crayon drawing. And that "vibe" then brings with it associations with all the types of things children might normally include in a drawing.

Re:GLM-5: From Vibe Coding to Agentic Engineering by segmondy on Wednesday February 11, 2026 @08:01PM (#46983566)
This is actually a good benchmark, I use to roll my eyes at it. Then I decided to apply the same idea and ask the models to generate SVG image of "something" not going to put it out there. There was a strong correlation between how good the models are and the image they generated. These were also no vision images, so I don't know if you are serious but this is a decent benchmark.