Anthropic's Amended IPO Filing Reveals $33B Revenue and a $104B Loss

Anthropic filed an amended Form S-1 with the Securities and Exchange Commission on Monday, tacking third-quarter numbers onto a prospectus that only landed last week. The update shows the AI company pulled in $33.24 billion in revenue for the nine months ended Sept. 30 — up roughly 1,200% from the same stretch a year earlier. The original filing stopped at the first half of the year, so this is the first hard look at how the back half went.

The bottom line is far less pretty. Anthropic booked a $104 billion net loss over those nine months, compared with a $25.1 billion loss in the same period of 2025. That's the tension investors will have to sit with as the company edges toward what could be a historic market debut: blistering growth paired with an eye-watering burn.

The filing also exposes the sheer scale of Anthropic's future obligations. The company said it has entered 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," according to the amended document. In plain terms, that's a colossal bet on chips, data centers and the machinery needed to train and run frontier models.

Anthropic's march to the public markets has been one of the most closely watched stories in tech, and last week's prospectus pushed it a step closer to listing. Monday's amendment sharpens the financials that bankers and investors will dissect. CNBC, which reported the filing, noted the story is still developing.

For now, the headline numbers tell the story: revenue is exploding, losses are exploding faster, and the company has already signed up for hundreds of billions in compute and infrastructure spending. Anyone weighing the IPO now has a much clearer — and much heavier — set of numbers to work with.