OpenAI
San Francisco, USA · est. 2015- Latest valuation
- ~$300B+ (2025 secondary/round reporting)
- Total funding
- Tens of billions (Microsoft + investors)
- Key investors
- Microsoft, Thrive Capital, SoftBank (reported)
- Flagship models
- GPT-5, GPT-5.1, o-series reasoning
- Latest release
- GPT-5.1 (2026-02)
Capped-profit structure under a nonprofit parent. Figures widely reported but not officially confirmed by the company.