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OpenAI

OpenAI has raised $57.9B across multiple major rounds, including a landmark $40B Series F in March 2025 at a $300B valuation, backed by SoftBank, Microsoft, Thrive Capital, and others. Earlier funding includes an undisclosed Series E in November 2024 at a $157B valuation and a $4B debt round in October 2024 led by global banks. Founded in 2015, OpenAI develops advanced AI systems, foundational models, and deployment tools. Its funding supports AGI research, global-scale infrastructure, enterprise platforms, and the expansion of AI agents across industries.

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Quick facts

Total funding
$57.9B
Valuation
$300B
Founded
2015

Notable investors

  • SoftBank
  • Microsoft
  • Thrive Capital

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