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ChatGPT crowned best AI chess player after final win — Check where Gemini, Grok ranked

The ChatGPT o3 model defeated the xAI model Grok 4 in the final round of a chess tournament to find the strongest ...

xAI Expands Grok 4 AI Model to All Users Globally, Offers Increased Rate Limits for a Limited Time

AI made Grok 4 available to all users of the platform globally, irrespective of whether they have an active subscription or not.