OpenAI · Series A
Creator of ChatGPT, GPT-4, and the leading frontier AI lab.
Amount
$10B
Round
Series A
Valuation
$100B
Announced
Jan 23, 2024
Investors
Lead investor
Notes
Microsoft multi-year, multi-billion extension
Other OpenAI rounds
| Date | Round | Amount | |
|---|---|---|---|
| Oct 2, 2025 | Series B | $10.3B | Details → |