The problem with AGI is not that it's undefinable, but that everyone has a different one. Kinda like consciousness in that regard.

Fortunately, OpenAI already wrote theirs down. Well, Microsoft[0] says they did, anyway. Some people claimed it was a secret only a few years ago, and since then LLMs have made it so much harder to tell the difference between leaks and hallucinated news saying this, but I can say there's at least a claim of a leak[1].

[0] https://blogs.microsoft.com/blog/2026/02/27/microsoft-and-op...

[1] It talks about it, but links to a paywalled site, so I still don't know what it is: https://techcrunch.com/2024/12/26/microsoft-and-openai-have-...