OpenAI
OpenAI is the AI research and deployment company behind ChatGPT, GPT-5, Sora and the o-series reasoning models. Headquartered in San Francisco, the firm has raised roughly $64B across all rounds, most recently a $40B SoftBank-led primary in March 2025 that valued it at $300B, with a 2025 employee tender pushing the valuation to about $500B.
Company snapshot
- Active
- Total funding
- $64B
- Funding rounds
- 11
- Last round (Series F)
- $40B
- Last round date
- Mar 2025
- Founded
- 2015
- Employees
- 5001-10000
- Headquarters
- San Francisco, California, United States
Founders
Sam Altman, Elon Musk, Greg Brockman, Ilya Sutskever, Wojciech Zaremba, John Schulman
Industries
- Artificial Intelligence
- Generative AI
- Machine Learning
- Software
Notable investors
| Investor | Role |
|---|---|
| SoftBank | Lead |
| Microsoft | Lead |
| Thrive Capital | Lead |
| Coatue | Co-investor |
| Altimeter Capital | Co-investor |
| Khosla Ventures | Co-investor |
| Sequoia Capital | Co-investor |
Frequently asked questions
How much funding has OpenAI raised?
OpenAI has raised $64B in total funding across 11 rounds.
What was OpenAI's most recent funding round?
OpenAI's most recent round was a Series F of $40B in Mar 2025.
When was OpenAI founded?
OpenAI was founded in 2015.
Where is OpenAI headquartered?
OpenAI is headquartered in San Francisco, California, United States.
How many employees does OpenAI have?
OpenAI has 5001-10000 employees.
Who are OpenAI's investors?
OpenAI's notable investors include SoftBank, Microsoft, Thrive Capital, Coatue, Altimeter Capital, Khosla Ventures.