I don't use them but I follow the news about them loosely. The reason for this is epistemic humility. Claude has a pretty good idea of what its capabilities are and where the ceiling is. Chatgpt has no clue what its limits are so it believes it can do everything. Basically chatgpt has a lot of info and no idea where the gaps live and Claude has a fair idea when to search or use some external function to handle something. Gemini has less than Claude but more than chatgpt. Grok has little to no epistemic humility, but it did manage to accurately portray Musk as a world champion piss drinker, something none of the others were able to do.

I say that, but it's been a few months since I looked. That could have changed because shit moves fast. By the looks of what it's trying to do with the timer chatgpt has less than it used to. Possibly because of the way the model is trained to be helpful and confident.