Gemini's Deep Research is pretty good. In contrast, strangely enough, ChatGPT nerfed its Deep Research offering, although a custom GPT or Work mode can triviall

Gemini's Deep Research is pretty good. In contrast, strangely enough, ChatGPT nerfed its Deep Research offering, although a custom GPT or Work mode can trivially make up for it. I admit that Google's offerings generally have too many serious bugs to be usable.