Amazon and Google's early bets on AI startup Anthropic are looking increasingly lucrative as the company moves toward a public listing. According to a Reuters analysis of Anthropic's IPO paperwork, the two tech giants' combined stakes could be worth a staggering $411 billion if the offering prices at $78 per share.
That figure is more than just a headline number. It reflects a fundamental shift in how big tech companies are backing the artificial intelligence boom—not merely as vendors selling cloud services, but as financiers with skin in the game.
From vendor to financier
Amazon and Google didn't just sell Anthropic the computing power needed to train and run its AI models. According to Reuters' review of the IPO documents, they also provided funding through loans, share purchases, and private-placement deals. This dual role makes them both service providers and equity owners, a structure that is becoming increasingly common in the AI industry.
At the proposed $78 per share, Reuters calculates that Amazon's position could be worth $271.8 billion, against the $18.0 billion it originally put in. Google's stake, meanwhile, could be valued at $139 billion, versus its $33.3 billion investment. Those are enormous paper gains, but the bigger point is less about eye-popping numbers and more about how intertwined these relationships have become.
When funding and compute contracts run between the same counterparties, the fortunes of one AI lab can matter for multiple lines on a partner's financial statements at once. A single company's performance can affect reported investment value, future cloud revenue, and even the terms of long-term contracts.
What a $78 IPO means for markets
If Anthropic lists at $78, the math suggests Amazon and Alphabet could be sitting on massive mark-to-market gains. But the same structure that creates upside can also concentrate exposure. Because these cloud providers are both financiers and service suppliers, Anthropic can influence two drivers at once: the reported value of their investments and the future demand for their computing services.
Reuters also notes that Anthropic has committed to spend at least $47.2 billion on Microsoft computing through 2033. That's a reminder that Big Tech's AI deals often bundle equity, loans, and long-term spending commitments. For investors, this raises a key question: how much of "steady" cloud earnings is tied to a handful of fast-growing AI clients that could deliver windfalls in good times, but also force write-downs or slower contract growth if sentiment or spending turns?
The IPO itself has been a topic of intense interest, with Anthropic's IPO targeting up to $90.4 billion raise and a $1.02 trillion valuation. That would make it one of the largest tech listings in history, and it has already generated headlines, including an IPO filing mix-up that tested AI market nerves and paperwork that was sent to banks and then retracted.
What it means for everyday investors
For the average investor, the key takeaway is not about chasing paper gains. It's about understanding that the AI boom is increasingly financed by a small number of large tech companies, and that those companies' fortunes are becoming more closely tied to the success of a few AI startups.
If you own shares in Amazon or Alphabet through a fund or directly, the value of your holdings could be affected by Anthropic's performance, even before the IPO. After the listing, those stakes will be marked to market, meaning their value will fluctuate with Anthropic's stock price. That could add volatility to the balance sheets of Amazon and Google, which are often seen as stable, diversified tech giants.
It's also worth noting that the structure of these deals—where cloud providers are both investors and suppliers—can create conflicts of interest. For example, a cloud provider might be incentivized to push its own AI services, even if a competitor's offering is better for the startup. Regulators and investors will be watching closely.
For now, the $78 IPO price is just a target. The final price will depend on market conditions and investor demand. But the sheer size of the potential windfall for Amazon and Google underscores how much is riding on the success of Anthropic and the broader AI sector.
As TSMC's $1 billion bet on AI model makers shows, the entire supply chain is placing big bets on AI's future. And chip ETFs have already surged on Anthropic-related news, indicating that the market is paying close attention.
In the end, the $411 billion figure is a reminder that in the world of AI, the lines between customer, investor, and partner are blurring. For investors, that means keeping an eye on the interconnected web of deals that could amplify both gains and losses.
