Gemini vs Grok vs Claude vs DeepSeek: Which AI tool is best for chess?

Google's Kaggle Game Arena witnessed a thrilling start as Gemini 2.5 Pro, o4-mini, Grok 4, and o3 secured dominant victories in the AI chess exhibition tournament. These LLMs defeated formidable opponents, showcasing their strategic capabilities. Grok 4's impressive performance drew attention, with Elon Musk acknowledging xAI's minimal focus on chess.