Isn't that grok.com? There is also a grok iOS and Android app (though the Android app is apparently a bit of a 2nd class citizen)

Admittedly, some of the uses in the article do sound useful. Time will tell

That must be new because a few months ago I wanted to give it a try and the only option was to have a Twitter account.

I agree with you.

But this is why we must champion open protocols and open source software.

I absolutely believe both LLMs and social media platforms should be federated and controlled by the user.

Yeah, I'm not contesting that at all. I think Telegram sold its soul a long time ago, so I kind of just treat it as a self-contained socially oriented splinter-net with its own integrated app environment... and it's actually really cool and feature rich. I also find Grok to be an LLM that performs pretty well, so I don't mind the integration, much the same way I didn't mind the AI integrations into WhatsApp, but I understand that many people just want a messenger that's a messenger so I can understand the pushback.