TSMC Approves Up to $1B in OpenAI and Anthropic Stakes

TSMC’s board has approved investments of up to $500 million each in OpenAI and Anthropic, putting the world’s leading contract chipmaker in a position to own stakes in two companies driving demand for artificial intelligence computing. The decision appears in the company’s 10 November board resolutions. It is an approval ceiling, not a statement that $1 billion has already been spent.

Under the plan, TSMC could buy up to $500 million of Anthropic common shares at the per-share price of its initial public offering. It could also acquire up to $500 million of OpenAI preferred stock. Those are different transactions with different triggers. The Anthropic portion depends on the terms and timing of a market listing, while the filing does not provide a closing date for the OpenAI investment.

The development is unusual because TSMC normally earns its money by manufacturing chips for customers rather than taking stakes in the software companies that use the resulting computing power. The proposed investments would give the foundry a financial interest in two large AI model developers. They also raise a useful question for investors: how much of AI’s supply chain is beginning to finance the demand that justifies its own expansion?

AI laboratories need vast quantities of processors and infrastructure to train and serve models. Much of the world’s most advanced AI silicon is made using TSMC’s manufacturing technology, including products designed by Nvidia and other chip firms. OpenAI and Anthropic do not need to buy wafers directly from TSMC for their growth to influence its order book. Their computing requirements flow through cloud providers and chip designers that use its factories.

The board resolutions also approved approximately $40.93 billion in capital appropriations for advanced chip capacity, packaging, factory construction and research-related spending. That sum is separate from the proposed stakes in OpenAI and Anthropic. It shows the far larger scale of TSMC’s manufacturing commitments, which investors should not confuse with the $1 billion maximum earmarked for AI company shares.

For OpenAI, a potential TSMC investment comes amid questions about the scale and structure of its financing. TechBooky recently reported on a separate account of its funding round. The board approval does not establish whether TSMC participated in that earlier close or whether its proposed purchase would occur later. No transaction terms beyond the investment ceiling and preferred-stock class are supplied in the resolution.

The Anthropic proposal is tied explicitly to an IPO price. That makes it contingent on an offering taking place and leaves the value of the stake unknown until the final share price and allocation are determined. A headline saying TSMC has already bought $500 million of Anthropic shares would go beyond what the company disclosed.

TSMC’s broader strategy remains rooted in contract manufacturing. TechBooky covered its recent reaffirmation of that focus amid questions about possible moves into memory production. Buying minority stakes in AI developers would be an investment decision, not evidence that TSMC is abandoning its foundry model or changing the ownership of customer chip designs.

The next facts to watch are completed purchases, the eventual Anthropic offering terms and any disclosure of how these investments are accounted for. Until then, the confirmed development is a board authorisation of up to $1 billion across two AI companies, alongside substantial new manufacturing appropriations. The move is a clear sign of TSMC’s confidence in long-term AI demand, but the financial exposure has not yet been fully realised.