Anthropic lost $80.7 billion in six months, and most of it is a warning sign anyway
Anthropic reported a net loss of $80.7 billion in the first half of 2026. But much of this was caused by accounting rules, not actual cash spending. The company still spent nearly four times as much on computing power as it did a year earlier, and it has already promised to spend hundreds of billions more.
Anthropic, the company that makes the Claude chatbot, reported a net loss of $80.7 billion for the six months ending June 30, 2026. The figure appeared in its public filing for its planned initial public offering (IPO). This was much higher than the $13 billion loss it reported for the same period last year. The number is in the company's filing with the U.S. Securities and Exchange Commission (SEC). It is not a typing mistake or a loss added up over several years. It covers just six months.
About $72 billion of that loss came from an accounting charge linked to convertible notes, which are loans that can later be turned into shares of Anthropic. As the estimated value of the company rose, the recorded value of these notes also had to rise. Accounting rules treat that increase as a loss on paper, even though no cash actually left the company. So, if you want proof that Anthropic spent $80 billion in cash on its operations, this figure does not provide it. That is an important fact to understand, and leaving it out would also be misleading.
Anthropic spent nearly $9 billion on computing power and infrastructure in the first half of 2026. That was up from $2.3 billion during the same period a year earlier. This is not just an accounting effect. It is money spent on computer chips and data center capacity. These costs nearly quadrupled in one year, although revenue grew even faster.
Revenue did grow quickly. Anthropic earned $16.3 billion in the same six-month period, up from $1.1 billion a year earlier. At a meeting with potential investors on October 14, the company said its revenue for the third quarter reached $16.8 billion, a 45% increase from the previous quarter. These are very strong numbers for a company that is only five years old. But they are still much smaller than the amount Anthropic says it needs to spend to keep growing.
The company has promised to spend at least $518 billion over the next ten years on cloud services and computing infrastructure. It has also discussed future commitments for computing power as high as $750 billion. This is a number worth worrying about far more than the $80.7 billion headline loss. A company can deal with a one-time accounting change in the estimated value of its investments or debts. But promising to spend half a trillion dollars or more on computer chips over ten years is a much bigger risk. Anthropic's infrastructure costs have already quadrupled in six months. To make this plan work, its revenue must keep growing faster than its spending for a very long time.
Why the timing matters
Anthropic made its IPO filing public on October 26. Meetings to present the company to investors are expected to begin during the week of November 9, and its shares could start trading before Thanksgiving. Some investors are reportedly considering a company value of around $1.5 trillion after seeing the new financial details. That is below earlier estimates of as much as $2 trillion. Whatever the accounting reasons behind it, an $80.7 billion loss displayed on the first page of an IPO prospectus makes it harder for the bankers helping the company sell its shares.
To be fair, Anthropic explains the situation clearly in its own S-1 filing, the document companies use to provide financial details before an IPO. It explains how the convertible-note accounting works and how much the company spends on infrastructure. This came after Anthropic told potential investors that its third-quarter revenue had reached $16.8 billion. The company is betting that sharing specific details, rather than trying to make the numbers sound better, will help it during its investor presentations. Investors must decide whether the fourfold increase in computing costs is simply what it takes to compete with OpenAI and Google, or whether Anthropic still does not know when its bills will stop growing. This is exactly the question the company will need to answer during its IPO.
Claude is still the main product behind Anthropic's business. It is the company's leading AI assistant and the basis for the services bringing in $16.8 billion in quarterly revenue. That revenue is real. So is the nearly $9 billion spent on computing power during the first half of the year. Both figures matter. Anthropic's filing shows that over the past year, revenue grew faster than spending on computing power and infrastructure.