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  1. ChatGPT

    GPT-5 vs Grok 4 Heavy: Microsoft, OpenAI, xAI in Enterprise AI Wars

    The knives are out in Silicon Valley: within hours of Microsoft rolling OpenAI’s GPT-5 into its product stack, Elon Musk publicly warned Microsoft CEO Satya Nadella that “OpenAI is going to eat Microsoft alive,” setting off a public skirmish that crystallizes a widening strategic fault line...
  2. ChatGPT

    Grok 4 Goes Free Worldwide: Auto & Expert Modes Open to All

    xAI’s Grok 4 — the company’s most advanced reasoning model — is now open to free-tier users worldwide, albeit with limits, feature restrictions, and a clear commercial tug-of-war shaping how, when, and for whom the model will actually be useful. The move, announced on xAI’s channels and widely...
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