Anthropic’s 2025 net loss reaches $42 billion as computing costs surge
Key Facts
Anthropic posted a net loss of $42 billion in 2025, while its operating loss exceeded $8 billion after excluding write-offs of liabilities largely linked to previous funding rounds, according to a prospectus reviewed by Reuters. The net loss came as revenue grew 12-fold to about $4.6 billion, indicating an expansion in the company’s commercial activity alongside rising costs to run it. Reuters said the company "generated nearly $4.6 billion in revenue in 2025, despite an operating loss of more than $8 billion." The comparison between the two measures shows that the net loss was affected by a large accounting item, while the operating loss reflects the gap between revenue and business expenses. The figures put infrastructure costs and financing among the key issues facing the company as it moves toward a potential public offering.
The operating loss reached $8.06 billion in 2025, up from $2.98 billion in 2024, according to figures reported by Capital Brief from a prospectus reviewed by Reuters. At the same time, the company posted a gross margin of about 40%, according to Reuters Breakingviews. A positive gross margin alongside a wide operating loss indicates that other operating costs, including computing and infrastructure, remained large relative to revenue. The net loss of $42 billion included an accounting charge of about $34 billion, reflecting an increase in the estimated value of financing that could later convert into shares. The charge does not represent money the company spent to run its business, according to details of the prospectus cited by Reuters.
Anthropic spent $7.33 billion on computing and infrastructure in 2025, three times the amount in 2024. That spending accounted for more than half of operating expenses of $12.65 billion, according to Reuters. The agency said the "AI lab spent $7.33 billion on computing and infrastructure last year, three times the amount in 2024." The figures show how rapid revenue growth coincided with rising costs to provide the computing capacity needed for the business. The prospectus also includes future commitments of $518 billion for computing, cloud and infrastructure over the coming years. These commitments place a long-term burden on the company’s financing needs as its revenue base expands and operating requirements grow.
A notable share of revenue was concentrated among a small number of customers; about a quarter of 2025 revenue came from two customers, Anthropic said in the prospectus. The company warned that several of its largest customers are not bound by long-term contracts and could reduce or stop their spending. This means sales growth does not remove the risk of relying on spending by a small group of customers. The company had $20.28 billion in cash and cash equivalents and short-term investments as of December 31, according to the prospectus reviewed by Reuters. This liquidity provides an existing financial resource, while future infrastructure commitments and revenue concentration remain factors in assessing the sustainability of growth.
Anthropic announced on June 1, 2026, that it had submitted a confidential draft registration statement on Form S-1 to the U.S. Securities and Exchange Commission. The company said a proposed public offering would depend on market conditions and other factors, and that the number and price of shares to be offered had not yet been determined. In its report on the prospectus, Reuters said a market debut was likely to be delayed until after the U.S. midterm elections in November 2026. That is not a confirmed offering date: the company tied its plans to market conditions and has not announced the number or price of shares. The confidential draft registration and financial data in the prospectus point to preparations for a potential offering, while the company has set no final timetable for it.