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MGX, a backer of OpenAI, Anthropic, and Elon Musk's xAI, has closed its fund at $49 billion — a figure the firm described as one of the biggest AI-focused raises ever.
The close concentrates a significant pool of dedicated capital across a portfolio already anchored in frontier artificial intelligence.
Scale: $49 Billion in a Single Vehicle The $49 billion close places MGX's fund among the largest AI-dedicated investment vehicles on record.
For capital allocators, the headline number is a concrete signal on where private market money is moving: a fund of this size, focused on artificial intelligence, represents one of the more consequential single-vehicle closes the sector has seen.
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