What are some of the best generative AIs you will recommend? (For text)

If you're looking for speed, groq (not grok) is insanely fast. They have their own ASICs (sort of) which enable a crazy throughput and therefore a completely different set of tokenomics. It also didn't require a signup to use until it blew up recently.

Claude AI >>>> gpt 3.5

Depends on the use case: Phind for coding(good level of accuracy) perplexity and claude for generating internet level summary
Chatgpt and gemini for general use cases