Elon Musk’s Grok has lost to ChatGPT-maker OpenAI in the final of a tournament to decide the best artificial-intelligence chess player.
OpenAI’s o3 model emerged unbeaten in the tournament and defeated xAI’s model Grok 4 in the final, adding fuel to the fire of an ongoing rivalry between the two firms, the BBC reports.
Google’s model Gemini claimed third place in the tournament, after beating a different OpenAI model.
Musk and Sam Altman, both co-founders of OpenAI, claim their latest models are the smartest in the world.
Tech companies have historically often used chess to assess the progress and abilities of a computer, the BBC reports, with modern chess machines proving to be virtually unbeatable against even the top human players.
For the first time, the competition was between AI programs designed for everyday use rather than computers designed for chess.
Grok made a number of errors in the final games, including losing its queen repeatedly.