Anthropic Revenue Hits $17 Billion in Q3 as Net Loss Widens

Anthropic revenue reached nearly $17 billion in the third quarter of 2026, up more than 12 times from a year earlier, according to an amended IPO filing the Claude maker submitted to the US Securities and Exchange Commission on Monday, November 2. The same filing shows a net loss of $23.3 billion for the quarter, almost double the $12.1 billion it lost in the same period of 2025.

The numbers come from Anthropic’s updated S-1 registration statement, the first version to include results for the three months ended September 30, 2026. The company still has not set a price range for its shares, which it plans to list on the Nasdaq Global Select Market under the ticker “ANT”.

Anthropic Revenue: The Key Numbers

• Q3 2026 revenue: $16.96 billion, compared with $1.38 billion in Q3 2025 (up 1,127%).
• Revenue for the first nine months of 2026: $33.2 billion, versus $2.5 billion a year earlier.
• Total operating expenses: $17.5 billion, up 292% year over year.
• Operating loss: $567 million, after an operating profit of $974 million in Q2 2026.
• Net loss: $23.3 billion, versus $66.3 billion in Q2 2026.

Why the Loss Is So Large

Most of the net loss is not cash spent on running Claude. About $21.9 billion comes from changes in the fair value of convertible notes, derivative liabilities and SAFEs, an accounting charge that grows as investors value the company higher ahead of the listing.

The operating side is closer to break-even. Anthropic says the swing to an operating loss in Q3 was driven mainly by $5.0 billion of compute bought under short-term commitments, which costs much more than capacity under its multi-year deals, plus $2.0 billion in non-cash charges tied to its donation matching program. Compute and infrastructure costs alone hit $9.9 billion, as the company keeps buying capacity from partners such as SpaceX, which counts Anthropic as its largest customer.

On its own adjusted measure, Anthropic reported operating income of $2.5 billion for the quarter, up from $2.2 billion in Q2, while its adjusted operating margin slipped from 19% to 15%.

Who Is Paying for Claude

As of September 30, Anthropic had more than 11,900 customers paying $100,000 or more over the trailing twelve months, more than 1,900 paying $1 million or more and about 250 paying $10 million or more. Headcount rose to roughly 5,300 employees, and the company says Claude wrote about 90% of the code contributed to its own codebase in September.

The filing also confirms that the offering will include public sales in Australia, Canada, parts of the European Economic Area, Japan, Switzerland and the United Kingdom. Bloomberg reports that Anthropic aims to raise up to $3.5 billion from Japanese investors as part of the deal.

What It Means for the IPO

The update gives investors the clearest picture yet of how fast Anthropic is growing and how much that growth costs. Revenue is now rising far faster than compute spending, which the company frames as proof of efficiency, but heavy short-term compute purchases and IPO-related accounting charges keep the bottom line deep in the red. Anthropic first filed for its IPO in late October, and the next step is a price range and roadshow. Its latest Opus 5.5 model also topped the new GDPx benchmark this week, a sign of the technical lead it is pitching to investors.