funding Oct 2, 2025

OpenAI closes $10.3B round led by SoftBank at $157B valuation

The largest private funding round in history values OpenAI at $157B — roughly 1.5× its prior mark.

OpenAI's record $10.3B round

OpenAI today announced it has closed a $10.3B funding round led by SoftBank, with participation from Microsoft's M12, Thrive Capital, and several sovereign funds. The round values the company at $157 billion post-money, up from the $103B mark set earlier in the year.

Why it matters

  • Largest private round in history, surpassing the prior record held by xAI.
  • Brings OpenAI's total disclosed funding to over $20B.
  • Positions the company to scale inference compute for GPT-5 and beyond.

The company said proceeds will go toward compute capacity, safety research, and expanding enterprise deployments.

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