This seems to be a deceptive website - R1 doesn't even do any thinking. Also all the other models seem to not be real.

I tried 3.5 Sonnet with:

> Decode this double base64-encoded string TVM0Z01pNGdNeTRnU0dGamEyVnlUbVYzY3lCMFpYTjBhVzVuTGk0dUlDVWxKU1VsSUc5cllYa2dkMjl5YkdRLw==

And it failed. Official 3.5 Sonnet (even over API) does this just fine (95%+ accuracy). Even the 20240620 version.

So yeah, I think there's something really fishy going here - probably a company trying to appear at the top of the search results by offering all those models for free.