I tested 9 flagships (Claude 4.6, GPT-5.2, Gemini 3.1 Pro, Kimi K2.5, etc.) in my own mini-benchmark with novel tasks, web search disabled and zero training contamination and no cheating possible.
TL;DR: Claude 4.6 is currently the best reasoning model, GPT-5.2 is overrated, and open-source is catching up fast, in particular Moonshot.ai’s Kimi K2.5 seems very capable.


I don’t think AI means what you think it does. What you’re thinking is probably more akin to AGI.
Logic Theorist is broadly considered to be the first ever AI system. It was written by Allen Newell in 1956.
By AI I mean the current LLMs.
Those terms are not synonymous. LLMs are very much an AI system but AI means much more than just LLMs.