OpenAI's o3 faced off against xAI's Grok 4 in a chess tournament. It swept the board

A chess board Getty Images OpenAI's o3 swept xAI's Grok 4 in the final of an AI chess tournament. Hosted by Google's Kaggle, the tournament pitted general-purpose AI models against each other. The win adds to the ongoing public rivalry between Sam Altman and Elon Musk. It might as well have been…