Here is a list of some of the AIs out there. Will probably be outdated next week
Grok
https://grok.com, no account needed, good free tier, generates images
Grok 3 is (as of right now) the best AI available to the public. The deepsearch mode is the best way to research anything on the internet right now. Something finally beat Claude Sonnet 3.5 new.
Perplexity
https://pplx.ai, no account needed, ok free tier