Musk’s xAI Raises $20 Billion in Upsized Funding Round
Elon Musk’s AI venture lifted the raise beyond its original target to expand computing infrastructure and accelerate Grok development as competition for AI compute intensifies.
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Elon Musk’s artificial intelligence startup xAI said it has raised $20 billion in a Series E funding round, more than the $15 billion it initially targeted, in one of the largest private financing rounds in the AI sector this year.
Investors in the round include Valor Equity Partners, StepStone Group, Fidelity Management and Research Company, Qatar Investment Authority, MGX and Baron Capital Group.
Nvidia and Cisco Investments also participated as strategic investors. xAI did not disclose whether the funding was raised through equity, debt, or a combination of both.
xAI said the capital will be used to expand its computing infrastructure, develop new AI products and support ongoing research. The company operates the Grok chatbot and also owns social media platform X.
xAI reported it now runs one of the largest AI compute clusters in the world, with over one million H100 GPU equivalents across its Colossus I and Colossus II facilities, and claims its services reach roughly 600 million monthly active users across X and Grok applications.
The company said its Grok language models are trained on this infrastructure and that recent development has focused on scaling reinforcement learning to improve reasoning and autonomy. xAI also highlighted the rollout of Grok Voice, a real time conversational voice system available through mobile applications, APIs and Tesla vehicles.
Looking ahead, xAI said it is training the next iteration of its flagship model, Grok 5, and plans to introduce additional consumer and enterprise products. The company added that it is expanding its workforce as it scales operations.
The funding round further intensifies competition among well funded AI developers as companies race to secure computing capacity.
