Routes you to a random LLM - just a fun way to force yourself to try new things not just rely on muscle memory. Currently only has 5-10 and roughly weights the routing by popularity (ChatGPT -> Gemini -> Claude .... Copilot). Have been using it personally but thought I'd share in case folks had other ones to add. Main learning so far is that many are really good. Often small UX decisions can lead to better experiences than just AI horsepower.
HN follows redirects, so your link was replaced with meta.ai.