Grok 4 by xAI: The Boldest Challenger to ChatGPT and Gemini Yet
 Elon Musk’s xAI unveils Grok 4, touting it as the most powerful AI model to date—claiming to outpace PhDs and surpass rivals like OpenAI’s ChatGPT and Google’s Gemini 2.5 Pro. Explore what sets Grok 4
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