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OpenAI

PrivateRank #8 by valueUnited StatesFounded 2015openai.com

OpenAI is a U.S. artificial intelligence research and deployment company whose nonprofit foundation controls OpenAI Group PBC. It develops frontier AI models and products including ChatGPT, the OpenAI API, Codex, image and voice systems, and agentic tools.

AI valuation
$852B*16.7%increase
Mar 31, 2026 · OpenAI
Change vs Feb 27, 2026

AI valuation

4 events
$0
$250B
$500B
$750B
$1T
20252026
OpenAI AI valuation: Oct 2, 2024 $157B; Mar 31, 2025 $300B; Feb 27, 2026 $730B; Mar 31, 2026 $852B

Financial events

5
Open in releases →
DateEventFigures
Mar 31, 2026OpenAI closes $122 billion funding at $852 billion post-money valuation$122B raised · $852B* valuation
Feb 27, 2026OpenAI announces $110 billion investment at $730 billion pre-money valuation$110B raised · $730B* valuation
Mar 31, 2025OpenAI announces $40 billion funding at $300 billion valuation$40B raised · $300B* valuation
Oct 2, 2024OpenAI raises $6.6 billion at $157 billion valuation$6.6B raised · $157B* valuation
Jul 22, 2019Microsoft invests $1 billion and partners with OpenAI$1B raised

* Market cap / valuation. Company values are AI-attributed: the latest market cap or valuation × the share attributed to AI (100% for pure AI companies). Methodology

OpenAI — releases, models and financials · The Artificial Index