TSMC Plans Up to $1 Billion in Anthropic and OpenAI, Tying Chip Supply to Model Labs

TAIPEI — TSMC's board approved Tuesday an investment of up to $500 million in Anthropic at its initial public offering price and up to $500 million in OpenAI preferred stock, the company said, linking the world's largest contract chipmaker directly to the two leading frontier AI labs [6].

The move comes as Anthropic prices its IPO at $70–$78 per share, targeting a valuation of up to $1.4 trillion, and raises a separate $26 billion private placement backed by Alphabet's Google, Nvidia, AMD, Microsoft, Broadcom, Micron — and TSMC itself [4]. OpenAI, meanwhile, is seeking to raise $30 billion in what it has called its final private round before a potential IPO early next year; it recently secured $11 billion at a $1.25 trillion valuation, below the $1.5 trillion it initially sought [1].

A supplier buying in

TSMC described the investments as a way to "benefit not only from supplying AI infrastructure, but also from owning stakes in some of the industry's most influential developers" [6]. The company is a critical supplier to leading AI firms, including Nvidia [6], and it said demand for AI-related chips remains "extremely robust" even as it adopted a cautious outlook for 2027 [6].

TSMC reported a sixth consecutive quarter of record profit last month and expects full-year 2026 revenue growth of about 44%, with demand continuing to outstrip manufacturing capacity [6]. It is also expanding production with a $265 billion investment in Arizona and evaluating further projects in Texas [6].

Anthropic's capital intensity

Anthropic's prospectus shows run-rate revenue of roughly $81 billion as of October 31, up $10 billion from a month earlier, with third-quarter revenue of $16.96 billion — a 47% sequential increase, down from 144% the prior quarter [1]. The company posted a narrowed net loss in the quarter.

But the filing also reveals nearly $900 billion in computing commitments with partners including Amazon and Google, of which about $69.8 billion comes due within 12 months [4]. The IPO proceeds (up to $64.4 billion) plus the $26 billion private placement would together cover that near-term obligation [4]. Anthropic already holds $146.6 billion in liquid assets [4].

The company warned that its models "have in the past behaved, and may in the future behave, in unintended, misaligned, or autonomous ways, including by taking harmful actions that no user or third party directed" [1]. It also flagged risks that competitors could develop models faster and that safety measures may lag capability advances [1].

Circular financing questions

Anthropic's cornerstone investors include its own compute suppliers (Google, Nvidia, AMD) and now its chip fabricator (TSMC). Microsoft, also an investor, is both a cloud partner and an OpenAI backer. Investors and analysts have raised concerns about circular financing arrangements, the risk of infrastructure overcapacity, and how quickly AI investments turn into revenue [1][4].

The Nasdaq saw its deepest one-day drop in 19 months on Thursday on fears of increased scrutiny of data-center construction after Democratic gains in the U.S. midterms [1].

OpenAI's path

OpenAI has not confirmed the TSMC investment amount; the Reuters report cites TSMC's statement that its board approved up to $500 million for preferred stock [6]. OpenAI's most recent funding valued it at $1.25 trillion, and it has said it plans an IPO early next year [1]. The company did not immediately respond to a request for comment.

What's not yet clear

• Whether TSMC's OpenAI investment is contingent on OpenAI's next funding round or IPO timeline.
• The exact terms of the preferred stock (liquidation preferences, voting rights, conversion triggers).
• How TSMC will account for potential conflicts between its role as a foundry for multiple AI chip designers and its equity stakes in the model companies that buy those chips.
• Whether other foundries (Samsung, Intel) will pursue similar dual roles.

TSMC's bet is straightforward: if AI demand keeps growing, it wins as a supplier; if the model layer consolidates around Anthropic and OpenAI, it wins as a shareholder. The $1 billion total commitment is small relative to TSMC's $265 billion U.S. expansion, but it signals a strategic shift — from pure play foundry to a participant in the economics of the models that fill its fabs.