This is a listing of AI Chatbot websites I use for research. There are some options when it comes to AI websites. Some of the options are: Requires validated email. Free trial with card required to try. Free and paywall versions available. On the list below the first listing are available without registration. The rest are sites where you have to give them your email address and, possibly, a credit cards number before you can use the site.

chatgpt.com – Free and paywall versions available. [ Reviews ]

SciSpace – Free and paywall versions available. [ Reviews ]

Perplexity AI – Free and paywall versions available. [ Reviews ]

Meta AI – No Email or Paywall? [ Reviews ]

you.com – Free and paywall versions available. [ Reviews ]

Deep AI – Free and paywall versions available. [ Reviews ]

Liner – Free and paywall versions available. [ Reviews ]

Microsoft Copilot – Free and paywall versions available. [ Reviews ]

claude.ai – Requires validated email. Free and paywall versions available. [ Reviews ]

scite.ai  – Free trial with card required to try. No Free version available. [ Reviews ]

jasper.ai – Free trial with card required to try. No Free version available. [ Reviews ]

Tenorshare AI – Requires validated email. Free and paywall versions available. [ Reviews ]