Series (October 2024)
Equity$6.6Braised
$157Bpost-money valuation
Source
Notes
$6.6B round at $157B valuation. Investors: Microsoft, Nvidia, SoftBank, Thrive Capital. Per CNBC.
Other Rounds by OpenAI
6| Round | Raised | Valuation | Lead Investor | Date |
|---|---|---|---|---|
| Series (March 2025)(equity) | $40B | $300B | SoftBank | Mar 2025 |
| Strategic Investment (Microsoft, 2023)(strategic) | $10B | Microsoft | Jan 2023 | |
| Series (2023) | $300M | $29B | 2023 | |
| Series (2021)(equity) | $1B | Jan 2021 | ||
| Strategic Investment (Microsoft)(strategic) | $1B | Microsoft | Jul 2019 | |
| Seed(donation) | $1B | Dec 2015 |