As a cyclist, I tend to pay more attention to the bike shape than most people. Everyone knows what a bike looks like, but as with LLMs, most people would struggle to draw one - correctly connecting all the different tubes at correct angles etc.

I note that even these bikes are not actually rideable. For a bike to be stable, the front wheel axle needs to extend forward a little ahead of the fork - the fork must ”bend forwards”. This is what actually keeps the bike upright, not gyroscopic effects or some such. Given LLMs are generally good at basic maths, im surprised they get this wrong.

Maybe a bit less so in this case though. As per the announcements, the model was actually trained for this prompt, so was fed some training data. I can well imagine the data there was just not so good.

That's absolutely not true. Zero rake forks are totally fine and very common on BMX bikes for barspins.

You can also ride a negative rake fork. They are less stable, yes, but a far cry from not actually rideable, cf https://www.instagram.com/yourforkisonbackwards/

I love this one https://www.gianlucagimini.it/portfolio-item/velocipedia/

People drawing bikes, scroll down to see they having made renders of all the drawings. Hilarious

If that's the case, how do bikes like this work?

https://www.walmart.com/ip/Huffy-26-inch-Rock-Creek-Men-s-Mo...

(apologies if I'm misunderstanding).

I feel like perhaps this is a bit too nuanced of a critique. While I do see what you are saying on many images of bicycles, there are also many that that I do not see it on. Close to half of them, in a quick Google image search, have forks appear straight and the axle is dead center on the ends of them. If there is something there, I am not seeing it even when trying to specifically look for it.

I'll also note that, using a piece of paper as a straight edge against my screen, there is a very slight forward curve on the low and a bit more on the high responses. Medium does appear to be perfectly straight.

Yeah but if 99.9% of people would get the bike totally wrong, why does it matter if the LLM doesn't get it perfect.

You're nit-picking on a detail no one actually cares about.