In August 2024, OpenAI was reported to be negotiating a funding round that would value the private company above $100 billion. The proposed investment was measured in billions, not $100 billion: Thrive Capital was expected to lead with about $1 billion, Microsoft was expected to participate, and Apple and Nvidia were reportedly considering investments. Those talks were not a completed transaction at the time. In October 2024, the financing closed at approximately $6.6 billion and an implied private valuation of about $157 billion, with Thrive, Microsoft, Nvidia and SoftBank among the reported investors; Apple was not included.
What the August 2024 reports actually said
The initial story, based on media reports, described negotiations rather than a signed financing. OpenAI was discussing raising several billion dollars at a valuation above $100 billion, according to reporting summarized by Reuters and The Wall Street Journal. OpenAI, Microsoft and Thrive Capital did not immediately confirm the terms.
That distinction matters. “$100 billion-plus” referred to the implied value of the company after the investment, not the amount OpenAI planned to collect. Thrive was expected to invest roughly $1 billion and lead the round. Microsoft was expected to join, while Apple and Nvidia were reported to have discussed participating.
Negotiation, not announcement
At the time, the named investors’ involvement remained subject to negotiations and transaction documents. A report that a company is seeking a valuation is not evidence that the round has closed, that every proposed investor will participate, or that all investors will receive identical economic rights.
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How the story developed
| Date | What happened | How to interpret it |
|---|---|---|
| 2023 | Microsoft made a major investment in OpenAI, widely reported at approximately $10 billion. | A historical strategic partnership; the exact economics are more complex than a simple common-stock percentage. |
| Late 2023 | OpenAI’s private-market valuation was reported at approximately $86 billion. | A prior transaction-based reference value. |
| August 28, 2024 | Reports said OpenAI was negotiating a round above a $100 billion valuation, with Thrive expected to lead. | Talks, not a closed financing. |
| August 29, 2024 | Apple and Nvidia were reported to have discussed joining; Microsoft was expected to participate. | Potential participation, not confirmation. |
| October 2024 | OpenAI completed approximately $6.6 billion of financing at an approximately $157 billion valuation. | A completed private financing, with Thrive, Microsoft, Nvidia and SoftBank among the reported backers. |
The final transaction is reported in Associated Press coverage. It exceeded the valuation discussed in August but raised far less than $100 billion in cash.
Why OpenAI needed another large financing
Frontier AI requires unusually heavy and continuing capital spending. Contemporary coverage connected the proposed financing with OpenAI’s need for computing capacity, model development and operating capital, as described by CRN.
- Training: Building larger models requires large clusters of specialized accelerators, data-center capacity and engineering talent.
- Inference: Every ChatGPT conversation or enterprise API request consumes compute after a model has been trained. More users can therefore increase infrastructure costs even as revenue grows.
- Infrastructure and reliability: Serving a global product requires networking, storage, security, redundancy and capacity planning.
- Operating expenses: Research staff, product teams, safety work and commercial operations add costs that are not eliminated by a successful model launch.
Specific loss or cost estimates reported at the time should not be treated as audited company guidance. The broader financing logic is clearer: OpenAI’s growth also increases its requirement for chips, cloud capacity and cash.
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Who was linked to the round?
Thrive Capital
Thrive was expected to lead and invest about $1 billion. The firm was already an important OpenAI backer and had participated in earlier employee-share transactions, according to the contemporaneous reports.
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Microsoft
Microsoft was OpenAI’s largest strategic investor and was expected to participate again. Its relationship includes cloud services, commercial distribution, preferred economic arrangements and profit participation. It should not be reduced to a claim that Microsoft simply owned a fixed percentage of an ordinary public company. The same reporting described Microsoft’s investment as exceeding $10 billion, while noting that accounts differ on the structure and value of the partnership.
Apple
Apple was reportedly in talks to invest after announcing a partnership to integrate ChatGPT with Apple Intelligence features. Its absence from the completed financing, reported by the Associated Press, shows why a potential strategic investment should not be presented as a completed one.
Nvidia
Nvidia was also reported to have discussed investing. Such a deal would have linked the leading supplier of AI accelerators with one of the largest buyers of that computing capacity. Nvidia was later identified among the backers of the completed round.
SoftBank
SoftBank appeared in reports about the completed financing, alongside Thrive, Microsoft and Nvidia. Its participation underscored the scale of institutional demand for exposure to frontier AI.
What a “$100 billion valuation” means
A private valuation is an implied price calculated from the terms at which investors buy a minority interest or existing shareholders sell shares. It is not a pile of cash and it is not the same as a public-company market capitalization with daily trading.
For example, if investors put $5 billion into a company for a minority stake, the price paid for that stake can imply a total value above $100 billion. The company receives the investment amount; the larger figure is the negotiated value assigned to all shares under that transaction’s terms.
- OpenAI did not have $100 billion in cash because of the reported valuation.
- Investors did not pay $100 billion to acquire the whole company.
- The valuation did not mean OpenAI had $100 billion of revenue.
- Ordinary investors could not buy shares at that private-round price through a public exchange.
- Different share classes, rights, restrictions and liquidity can make a private valuation difficult to compare with a public stock-market capitalization.
The approximately $157 billion figure attached to the October financing is likewise a transaction-based private valuation, not a guaranteed price at which every holder could sell.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.Why the investor mix mattered
The proposed lineup reflected the capital loop forming around AI, not just a conventional venture-capital bet.
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- Microsoft: OpenAI can drive Azure consumption, enterprise software demand and distribution of AI services.
- Nvidia: OpenAI’s expansion can increase demand for the accelerators and networking equipment Nvidia sells.
- Apple: ChatGPT integration can add consumer AI capability to Apple devices, while a financial stake could deepen commercial alignment.
- Thrive: The firm sought financial exposure to a high-growth private company in which it already had a relationship.
- SoftBank: Its later participation provided another large institutional channel for frontier-AI exposure.
Cloud providers can finance AI developers; those developers consume cloud capacity and chips; device makers distribute the resulting features; and investors seek exposure to the growth. That alignment can accelerate deployment, but it can also concentrate financing, supply and strategic influence among a small number of companies.
What the valuation did—and did not—tell investors
Potential upside
- ChatGPT gave OpenAI unusually broad consumer awareness.
- Strategic partners could improve access to cloud capacity, chips, distribution and enterprise customers.
- The completed $157 billion private valuation indicated that investors were willing to price frontier-AI exposure above the August target.
Risks and limitations
- Training and inference remain capital-intensive, so rapid usage does not automatically produce profits.
- Reliance on a few strategic investors can create concentration, bargaining and governance risks.
- Investors may value ecosystem access and influence as well as near-term cash flows.
- OpenAI’s nonprofit origins and evolving for-profit structure make its economic rights more complicated than those of a conventional startup.
- Private transaction prices can be less transparent and less liquid than public-market prices.
For personal investors, the practical conclusion is straightforward: this was not a public stock offering. A headline valuation should not be treated as a readily investable price, a guaranteed exit value or proof of profitability. Exposure through a public company such as Microsoft, Nvidia or Apple would be exposure to that company’s entire business, not a direct purchase of OpenAI shares.
Quick Recap
Common ways to misread the headline
- Confusing valuation with fundraising: OpenAI was reportedly seeking several billion dollars at a valuation above $100 billion; it was not raising $100 billion.
- Treating talks as a closing: The August reports described negotiations. The completed financing came later.
- Assuming Apple invested: Apple was linked to discussions but was not listed among the investors in the completed round.
- Calling it a market cap: OpenAI was privately held, so “private financing valuation” is more precise.
- Flattening Microsoft’s economics: Its partnership involved more than a simple ownership percentage.
- Ignoring the final result: The October transaction raised approximately $6.6 billion at an approximately $157 billion valuation.
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