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What is xAI and who founded it?

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xAI was a start-up company founded by Elon Musk in March 2023 that became the parent company of X (formerly Twitter) in March 2025. xAI was created to counter what Musk described as the political correctness in other artificial intelligence (AI) models. Known for its Grok chatbot, xAI was acquired by SpaceX in February 2026 and later rebranded SpaceXAI.