Anthropic reports $17 billion in Q3 revenue, purchase commitments of $895.4 billion in revised S-1

Anthropic reported updated financials as part of an amended Form S-1 filing with the Securities and Exchange Commission on Monday, giving investors a more comprehensive look into the state of its business.

The artificial intelligence company said it generated $33.24 billion in revenue for the nine months ended Sept. 30, up roughly 1,200% from the same period last year. It reported a $104 billion net loss during the period, though most of that was due to the change in fair value of convertible notes and derivative liabilities. Anthropic lost $25.1 billion over the same stretch in 2025.

Anthropic unveiled its highly anticipated prospectus last week, bringing the company one step closer to a potentially historic IPO. The initial filing only included the company's financials through the first half of the year.

During its third quarter, Anthropic generated roughly $17 billion in revenue. The company reported a net loss of $23.29 billion for the period.

The five-year-old company is best known for developing a family of AI models called Claude, and it primarily sells its products and services to enterprise customers. Anthropic is a capital intensive business, largely because of the complex infrastructure and hardware required to train and run large models.

In the amended S-1, Anthropic said it has entered into purchase commitments and lease agreements with an aggregate committed spend of about $895.4 billion, "substantially all of which is related to compute and infrastructure."

Anthropic said its compute and infrastructure expenses increased by $14.4 billion for the nine months ended Sept. 30, up 329% compared to the same period last year.

"As our compute and infrastructure capacity grows, the associated compute and infrastructure expenses have increased," Anthropic said in the filing.

The company's CEO Dario Amodei co-founded Anthropic alongside a handful of other researchers who defected from OpenAI, now its chief rival. OpenAI confidentially filed its prospectus with the SEC in June, but its executives have signaled that it's aiming for a 2027 debut.

Anthropic has worked to position itself as more safety-conscious than its competitors, and its S-1 includes more than 90 pages of risk factors. The company highlights risks including potential political headwinds, its complex infrastructure needs as well as the difficulties that can come from balancing safety and commercial objectives.