I have been using both for work and other stuff . I see that right now Anthropic Claude is better at many things than OpenAI . Sam has been busy marketing and all that bullshit while anthropic have been busy building with very less marketing. I expect anthropic to continue the lead unless they get someone like Sam on board . I believe Andre karpathy was one of the reasons why OpenAI ChatGPT was so good . Anthropic and lama from Facebook are two products I would watch out for in the ai assistant space