Anthropic's $1 Trillion IPO Bid Runs Into Falling Prices and $417 Billion in Bills

Anthropic wants a record-breaking stock market debut at a $1 trillion valuation — but its own Wall Street prospectus, published Monday, lists three threats that could derail the listing: rivals catching up, prices collapsing and bills that keep climbing.

No startup has ever grown so fast. In five years, the San Francisco company has become an AI giant. Yet investors have already tempered their expectations. In mid-August, shareholders floated a valuation of $2 trillion. Then quarter-on-quarter growth slowed from 145 percent in the second quarter to 45 percent in the third. Expectations cooled to around $1.5 trillion.

What does the prospectus admit?

The first risk is commoditization. Anthropic warns in the filing that "the degree of differentiation among advanced AI models may narrow."

The second is concentration. The company says "substantially all of our revenue" comes from its AI tools. Unlike Google or Meta, Anthropic has no advertising empire to fall back on. It has no cloud business like Microsoft's or SpaceX's either.

The third is self-imposed. Anthropic acknowledges its safety measures "could slow our capability gains relative to competitors that do not adopt similar constraints."

How close are the rivals?

Very close, and the gap is measured in months. Open models — which anyone can download and modify — trail closed models such as Claude or ChatGPT by only about four months on average, according to the research institute Epoch AI.

One of them is Kimi K3.1 Pro from Chinese company Moonshot. It costs half as much as Claude Opus 5.5, Anthropic's current flagship. Among paid models from Anthropic, OpenAI and Google, none has stayed on top for long.

The shift is already visible at Vercel, a developer platform that routes requests across AI models. In August, more than half of the text Vercel handled was processed by open models, up from 13 percent in April. Even so, Anthropic still captured nearly two-thirds of spending on the platform.

Why are prices falling?

Because products look alike, prices drop. According to Morningstar, the price of having AI process the same amount of text, at the same level of performance, has dropped 97 percent — from $17 at the end of 2024 to 50 cents today.

Anthropic cut the price of Claude Opus by 20 percent in September. OpenAI cut the price of one of its flagship models by a factor of five in July.

Price cuts alone do not kill the market. Malik Ahmed Khan, a senior equity analyst at Morningstar, said even a 90 percent price cut would not shrink total spending on AI as long as usage keeps growing at its current pace.

Anthropic's own sales data supports that view. Each new version of Claude has boosted sales. More than 80 percent of revenue last quarter came from models less than six months old.

What about the $417 billion in bills?

Anthropic's costs, unlike its prices, are largely locked in. To stay ahead, each new Claude model must be bigger than the last, trained on more data using more computing power.

Since late 2025, the company has committed to paying at least $417 billion to rent chips and servers. That equals nearly 13 years of sales at its first-half 2026 pace. Include cancellable or planned contracts, and the total could nearly double. These commitments are due no matter the state of its business, Anthropic warns.

The bet involves the entire industry. Google and Amazon are at once Anthropic's shareholders, its suppliers and its resellers. If AI proves less profitable than expected, the International Monetary Fund fears a "triple whammy" from these intertwined investments: falling stock prices, debts that are harder to repay, and promised revenue that never materializes.

The independent research firm New Constructs called the listing "an unprecedented test of investor gullibility."

Who else is queuing for capital?

To pay these bills, Anthropic is counting on stock market money, which is not unlimited. SpaceX, Elon Musk's rocket and AI company, raised record sums there in June. Google and Meta, both pouring fortunes into data centers, are also seeking fresh capital.

OpenAI has chosen to wait. Its chief, Sam Altman, called a listing "ill-advised" this year. OpenAI is holding off until 2027, giving it time to see how Wall Street treats its big rival first.

The IPO will therefore price more than a company. It will price the entire industry's promise that usage growth can outrun a 97 percent price collapse and $417 billion in fixed bills.