- OpenAI’s o3 model decisively defeated xAI’s Grok 4 with a flawless 4–0 victory in the final of the Kaggle AI Exhibition Tournament.
- This tournament was the first major competition to test general-purpose large language models (LLMs) in a chess setting.
- The match held personal significance due to the rivalry between OpenAI CEO Sam Altman and xAI founder Elon Musk, who were co-founders of OpenAI.
- Elon Musk commented on Grok 4’s performance, stating that xAI had spent “almost no effort on chess.”
- World number one chess player Magnus Carlsen estimated Grok’s rating at approximately 800 and OpenAI’s model at around 1200, significantly below his own peak rating.
IN FULL
Elon Musk’s Grok loses to Sam Altman’s OpenAI in AI chess tournament
