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OpenAI

AI research and deployment company behind ChatGPT, the GPT series of large language models, DALL-E image generation, and the Sora video model. The fastest-growing consumer AI platform with over 200 million weekly active users.

Foundation Models & AGI
Foundation Models
Sam Altman· CEO
Total Raised
$156.5B
Last Valuation
$813.3B
Founded
2015
Headquarters
San Francisco, CA
Employees
2,000+
Revenue Run Rate
$5B+ ARR

Overview

OpenAI is the company behind ChatGPT, the fastest-growing consumer application in history, and the GPT family of foundation models that ignited the generative AI revolution. Originally founded as a nonprofit research lab, OpenAI transitioned to a capped-profit structure to attract the billions in capital required to pursue artificial general intelligence. The company offers a broad product suite including the ChatGPT consumer assistant, the GPT API platform used by millions of developers, DALL-E for image generation, Sora for video generation, and an expanding enterprise offering. OpenAI has a deep strategic partnership with Microsoft, which has invested over $13 billion and integrated GPT models across its product line via Copilot. With over 200 million weekly active users and rapid enterprise adoption, OpenAI commands the largest market share in the generative AI platform layer and continues to push the frontier with each successive model release.

Funding History

8 rounds · Dec 2015 – Mar 2026
$156.5B
Total Raised
8
Valuation: $813.3B
Cumulative: $156.5B

OpenAI Completes Deal to Raise $122 Billion

Investors not disclosed
Source
7
Valuation: $66.7B
Cumulative: $34.5B

Reports: OpenAI to raise $10B from MGX, Coatue and Thrive

Investors not disclosed
Source
6
Valuation: $157.0B
Cumulative: $24.5B

Record-breaking round for continued AGI research and compute.

Thrive Capital (Lead)Microsoft VenturesSoftBank Vision FundKhosla Ventures
Source
5
Valuation: $157.0B
Cumulative: $17.9B

Record-breaking round led by Thrive Capital at $157B valuation, with participation from Microsoft, NVIDIA, and SoftBank.

Thrive Capital (Lead)
4
Valuation: $29.0B
Cumulative: $11.3B

Additional $300M close on the Series C round as ChatGPT reaches 100M users.

Sequoia Capital (Lead)Andreessen HorowitzThrive Capital
Source
3
Valuation: $29.0B
Cumulative: $11.0B

Microsoft extends partnership with $10B multi-year investment as ChatGPT reaches 100M users.

Microsoft (Lead)
2
Valuation: $5.0B
Cumulative: $1.0B

Microsoft invests $1B in OpenAI, forming a strategic partnership for Azure cloud computing.

Microsoft (Lead)
1
Valuation: $5M
Cumulative: $1M

Initial funding from Sam Altman, Elon Musk, Peter Thiel, Reid Hoffman, and others to launch OpenAI as a research lab.

Investors not disclosed

Frequently Asked Questions

How much has OpenAI raised in total?
OpenAI has raised a total of $156.5B across 8 funding rounds.
Who are OpenAI's investors?
OpenAI's investors include Sequoia Capital, Andreessen Horowitz, Khosla Ventures, Thrive Capital, Microsoft Ventures, and 3 others.
What does OpenAI do?
OpenAI is the company behind ChatGPT, the fastest-growing consumer application in history, and the GPT family of foundation models that ignited the generative AI revolution. Originally founded as a nonprofit research lab, OpenAI transitioned to a capped-profit structure to attract the billions in capital required to pursue artificial general intelligence. The company offers a broad product suite including the ChatGPT consumer assistant, the GPT API platform used by millions of developers, DALL-E for image generation, Sora for video generation, and an expanding enterprise offering. OpenAI has a deep strategic partnership with Microsoft, which has invested over $13 billion and integrated GPT models across its product line via Copilot. With over 200 million weekly active users and rapid enterprise adoption, OpenAI commands the largest market share in the generative AI platform layer and continues to push the frontier with each successive model release.
When was OpenAI founded?
OpenAI was founded in 2015 and is headquartered in San Francisco, CA.
Where is OpenAI headquartered?
OpenAI is headquartered in San Francisco, CA.