Yes, it's anonymous and 100%free to use (I use it since almost 2 Years as my main search engine). In the futur they will release an paid pro versión which include an webclipper and some collaboration features, but that don't change anything to the search app, this will stay free. Not very known, despite that Andi (former Lazy Web) was the first AI search ever, long before the ones from Google, M$ and others, with own independent LLM. I think it was hidden from the searches by these big companies, maybe because:

[–] Rai@lemmy.dbzer0.com 7 points 2 days ago

Thank you for introducing me to this! I haven’t used LLMs in the past, I will play around with this!