Claude writes like a guy at a firm I used to work with in the 90s; he was my employer's "visionary"; he'd worked at a whole lot of different companies on both sides of the Atlantic in inexplicably high-placed roles given that he was often bluffing, and was considered a lucky hire of a rising star. He'd be called into meetings with high end clients to spout off. He really needed you to know he understood, but very often he didn't.
I think it's likely that LLMs adopt the tone and style of their developers' communication culture. If you assume this is the case, you can infer quite a bit about the differences between OpenAI, Anthropic and Google DeepMind.
I am more and more clear about this given the way Muse Glimmer writes. Like a talented, slightly snarky guy who is maybe a bit of a dick but quite fun to be around.
Probably to a degree, I have found Gemini to be the least dis-likable of the models from the big 3 on that front. I wonder if the poor English comprehension of Deepseek-v4-pro and K3 is because of alleged distillation of Claude (speaking of why doesn't anyone distill openAI, are they just dramatically more competent at stopping API use that breaks their terms?).
V4-pro in particular seems very capable, but will just dramatically completely misunderstand user intent, it seems almost like it wasn't trained at all on non LLM generated instructions mid conversation.