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Morning Edition · Saturday, November 7, 2026Published at 1:25 AM EST · New York
Anthropic's amended IPO filing shows compute consumed 58% of third-quarter revenue
Revenue reached about $17 billion, but growth slowed to roughly 47% from the prior quarter, and the company disclosed $895.4 billion in purchase commitments that are almost entirely for compute and infrastructure.
Anthropic filed a registration statement on Form S-1 with the US Securities and Exchange Commission (SEC) on October 26 for a proposed initial public offering (IPO) of its Class A common stock. The company plans to list on Nasdaq under the ticker ANT. The original filing showed $16.3 billion in first-half revenue and a net loss that Fortune put at $80.7 billion.
The amended filing of November 2 added third-quarter results. Revenue was about $17 billion, according to CNBC. Quarter-on-quarter growth was about 47%, down from 144% in the second quarter and 132% in the first, Fortune reported. Compute and infrastructure expense reached $9.86 billion, or 58% of revenue, up from 48% in the prior quarter. Roughly half of that spending came from short-term capacity, which the filing says costs more than multi-year contracts (The Next Web). The filing also states that compute will grow in absolute dollars and remain the largest operating expense for the foreseeable future.
The company's cost and pricing trends are moving in opposite directions. In September, Anthropic said Claude Opus 5.5 "costs 40% less to run than Opus 5 on typical workloads." Each task now earns less, and the short-term compute behind it costs more. Total committed spending of $895.4 billion is a multi-year order book for Anthropic's cloud and chip suppliers.
The offering terms are not set. Neither filing gives a share count, a price range or an offering date. Reports disagree on whether the roadshow starts the week of November 9 or closer to November 16 (FinanceFeeds). Anthropic's last private round valued it at $965 billion after the money, according to secondary reports.
What this means
The filing shifts the central question about Anthropic from growth to margin, a question public investors can check every quarter. The mechanism is the compute-to-revenue ratio. It rose because demand exceeded contracted capacity, so Anthropic bought short-term compute at premium rates while it cut per-task prices to defend its market share. NVIDIA, Broadcom and the cloud providers gain, because the $895.4 billion is their backlog. Late-stage private holders of OpenAI and other labs are exposed, because a public valuation for Anthropic will reprice their comparables. Most coverage describes the 47% quarterly growth figure as a slowdown. The 58% compute share matters more, because it shows how much of each revenue dollar goes to suppliers. The precedent is Uber's 2019 IPO. Uber priced near the bottom of its range after investors focused on losses over growth, and its shares closed below the offer price on the first day. The desk's forward read is that the price range, when filed in the coming weeks, will imply a valuation below the most aggressive private-market estimates, and that the roadshow will depend on when long-term capacity brings the compute share down. The read is wrong if the range is set above the last private valuation and the offering is reported to be heavily oversubscribed, which would mean investors are pricing in scale and ignoring margins.
Part of a tracked trend
AI Hype Cycles and Funding Narratives
As capital floods AI, the narratives labs use to raise money and shape rules face growing public scrutiny, and the market increasingly separates verifiable capability and revenue from rhetoric on both the bullish and the cautionary side.
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