70
ChatGPT Has a Stroke When You Ask It This Specific Question
(futurism.com)
I burned down a forest to confirm
Don't ask it to name an NFL team that doesn't end with 's'
DeepSeek eventually gets it, but it's DeepThink takes a good ten minutes of racing 'thoughts' and loops to figure it out.
I'd guess that got something to do with how the underlying token processing and the "reasoning models" work.
Tokenisation probably turns plurals into singular forms, most of the teams loose the s at the end.
Reasoning mode looks at the previous output, sees that there is an s at the end actually.
You can actually inspect the tokenization using their API. It can get pretty wild.