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The Independent UK
The Independent UK
Technology
Anthony Cuthbertson

Elon Musk’s Grok loses to Sam Altman’s OpenAI in AI chess tournament

Sam Altman OpenAI Elon Musk Grok Magnus Carlsen Grok 4 XAI ChatGPT
Grok 4 lost to OpenAI's o3 in the final of the Kaggle AI Exhibition Tournament on 7 August, 2025 - (Getty Images)

Sam Altman’s AI model has defeated Elon Musk’s Grok in the first-of-its-kind chess tournament between leading artificial intelligence systems.

OpenAI’s o3 model swept xAI’s Grok 4 with a flawless 4–0 victory in the final of the Kaggle AI Exhibition Tournament, held on Thursday. Both models advanced to the final after defeating AI competitors from Anthropic, DeepSeek, Google, and Moonshot AI.

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