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Grok 4 is xAI’s most advanced model yet, but early praise is clashing with old scandals and fresh tests of its limits.
Linda Yaccarino is stepping down as CEO of X after two years leading Elon Musk’s social media company. Yaccarino’s departure ...
Elon Musk says Grok AI has been upgraded to focus on "facts over feelings," but its sharp political and cultural replies are ...