OpenAI
OpenAI (ChatGPT) develops AI models and software for generating and understanding text, images, and speech. Its products include ChatGPT and developer APIs for models such as GPT and DALL·E. The company also publishes research and works on model safety.
Founded by Sam Altman (CEO, Founder), Wojciech Zaremba (Founder), Greg Brockman (President, Founder, Chairman), Ilya Sutskever (Co-founder, Chief Scientist), Elon Musk (Co-founder, co-chair), John Schulman (Co-founder), Andrej Karpathy (Co-founder (founding research team)), Durk Kingma (Co-founder (founding research team)), Trevor Blackwell (Co-founder (founding research team)), Vicki Cheung (Co-founder (founding research team)), Pamela Vagata (Co-founder (founding research team))
| Round | Announced | Raised | Post-money |
|---|---|---|---|
| Round | Apr 17, 2026 | $75M | — |
| Growth | Feb 27, 2026 | $122B | $852B |
| Growth | Dec 11, 2025 | $1B | $500B |
| Round | Sep 1, 2025 | $10B | $500B |
| Series F | Mar 31, 2025 | $40B | $300B |
- TCThrive Capital
- MIMicrosoft
- AHAndreessen Horowitz
- SVSoftBank Vision Fund
- KVKhosla Ventures
- AMAmazon
- YCY Combinator
- NVNVIDIA
- TRT. Rowe Price
- TPTPG
| Kind | Implied valuation | Price / share | Date |
|---|---|---|---|
| $1T | $687.68 | Oct 6, 2026 | |
| $1T | $826.26 | Oct 1, 2026 | |
| $1T | $825.15 | Sep 30, 2026 |
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Data as of Oct 15, 2026. Valuations are estimates blended from primary and secondary-market signals — not investment advice.