Anthropic's draft IPO filing shows $80.7 billion first-half loss
Anthropic lost $80.7 billion in the first half of 2026, mostly from a $72 billion non-cash charge on convertible bonds, according to a draft IPO prospectus reported by The Wall Street Journal and Reuters. The Journal put first-half revenue at $16.3 billion.
AI-assisted · US Brief desk · Sources listed below
What happened
Anthropic's net loss widened to $80.7 billion in the first half of 2026, from $13 billion a year earlier, according to a draft IPO prospectus that The Wall Street Journal first reported and Reuters reviewed. About $72 billion of that was an accounting charge reflecting a rise in the estimated value of bonds that could convert into Anthropic shares, "rather than cash costs tied to its operations," Reuters said. The Journal reported first-half revenue of $16.3 billion.
Why it matters
Anthropic, the maker of Claude led by CEO Dario Amodei, is expected to go public in November, and Reuters reported last week that some investors are weighing a valuation of around $1.5 trillion. Reuters said a cooler reception could weigh on the wider AI market, whose near-term prospects investors tie largely to this share sale, ahead of rival OpenAI's possible listing next year.
More context
Where the cash goes: Anthropic spent nearly $9 billion on computing capacity and infrastructure in the first half, up from $2.3 billion a year earlier, and has committed to spend at least $518 billion over a decade on cloud services, computing and infrastructure, the filing shows, according to Reuters.
Revenue timeline: 2025: $4.6 billion in revenue, an operating loss of about $8.1 billion excluding the bond charge, and a $42 billion net loss, Reuters reported in September. Q2 2026: $11.6 billion, more than double the first quarter. Q3 2026: $16.8 billion, up 45% from the second quarter, Anthropic told prospective investors on Oct. 14. Some investors were disappointed that sequential growth slowed, Reuters said.
What the headline number hides: Most of the loss is a paper charge that grows as Anthropic's value grows. Reuters said the estimated fair value of those convertible notes tripled year over year as the valuation climbed. The cash burn shows up in the compute line instead.
How outlets framed it: The Journal's headline stressed "red-hot growth, many risks and massive computing costs." Reuters led with the $80 billion-plus loss. Fortune noted that the S-1 had leaked "again."
What's still unknown: Anthropic did not respond to Reuters' request for comment. A draft prospectus can change before it is filed publicly, and the final price, valuation and listing date are not set. Seeking Alpha's summary of the Journal report says the draft also flags customer concentration among its risks; US Brief could not see those figures.
5 listed sources
- Reuters via StreetInsider, Oct. 20, 2026
- Reuters via Investing.com (on WSJ report), Oct. 20, 2026
- The Wall Street Journal, Oct. 20, 2026
- Fortune, Oct. 21, 2026
- Seeking Alpha, Oct. 20, 2026
References listed by US Brief; a source count is not a verification score.
Editorial sourcing notes
Figures come from a draft S-1 that The Wall Street Journal and Reuters reviewed; US Brief has not seen the document. Hero photo shows Dario Amodei at TechCrunch Disrupt 2023 (file photo).
Like US Brief? You can support it with a tip.