Anthropic's Revenue Hits $16.8 Billion as It Lines Up a $2 Trillion IPO
Anthropic told prospective investors on October 14 that its third-quarter revenue reached $16.8 billion, according to the Financial Times, with Reuters citing an investor in the room who put the sequential increase at 45%. The company presented the figures at its San Francisco headquarters, the first time it has shared a full quarter of results with outside investors as it prepares what could be the largest listing in market history.
The quarterly progression is the story. Revenue was $4.7 billion in the first quarter and $11.6 billion in the second, according to the investor account carried by Reuters, which puts the third quarter's $16.8 billion about 3.5 times the first-quarter figure in six months. A year earlier, in the second quarter of 2025, the company booked $787 million.
Anthropic also told investors it was profitable in the quarter on an adjusted basis. Bloomberg reported the presentation described positive adjusted operating income, making this the second consecutive profitable quarter; the first came in Q2, with roughly $559 million of adjusted operating profit on $11.6 billion of revenue. Margins have moved sharply: the company said gross margins exceeded 80% once partner revenue share and training costs are excluded, and analysts at SemiAnalysis estimate inference margins could reach 88%, with overall gross margins improving from negative 94% in 2024 to around the mid-60s by mid-2026. Blended gross margins are projected to stay above 50% through 2026. Under GAAP, the company still reports heavy losses.
Anthropic's preferred headline is annualized revenue. It ended 2025 at about $9 billion, crossed $47 billion in May and reached $65 billion by the end of July. In September, the New York Times reported the run rate had passed $100 billion, a figure Bloomberg and the Wall Street Journal cited the same day. Half a dozen backers told Reuters they expect $100 billion to $120 billion before year-end.
Roughly 70% to 75% of revenue comes from pay-per-token API sales, and around 80% is enterprise-sourced. Claude Code is the fastest-moving product: from a $1 billion annualized run rate in November 2025 to $2.5 billion by February, and near $8 billion by May, with an estimated 54% share of the enterprise coding-model market. Customers spending over $1 million a year doubled from about 500 to more than 1,000 in under two months.
Anthropic's last private round was a $65 billion Series H in May that valued the company at $965 billion post-money, up from $380 billion in February. It confidentially filed IPO paperwork with the SEC on June 1. Investors are now discussing a debut valuation of $1.8 trillion to $2 trillion and a raise of roughly $100 billion, which would dwarf SpaceX's June listing. Morgan Stanley, Goldman Sachs, JPMorgan and Citi are expected to lead the underwriting.
Bloomberg reported formal roadshow marketing could begin as soon as the week of November 9, with trading on the Nasdaq targeted before Thanksgiving on November 26. The schedule slipped from an earlier October window so the offering could include third-quarter financials.
The prospectus shows the other side of the ledger. Anthropic has committed at least $518 billion over a decade to cloud, compute and infrastructure with six partners, and about 80% of that is non-cancelable or payable regardless of usage. That includes $252 billion of non-cancelable compute with Microsoft, Google and Amazon and $161.2 billion of Broadcom TPU leases. For context, 2025 revenue was about $4.6 billion, with an operating loss of $8.06 billion, a GAAP net loss of roughly $42 billion that included about $34 billion of non-cash charges, and $20.3 billion of cash and short-term investments at year-end.
Concentration is the open risk. The filing discloses two unnamed customers representing about 25% of revenue. Media reports say Meta and Microsoft are trimming Claude usage as in-house tools mature, with Meta reportedly cutting active Claude Code users by about half while still paying roughly $105 million a month.
Everything above rests on reporting by the Financial Times, Reuters and Bloomberg citing people familiar with the meetings. Anthropic has not confirmed the figures publicly or explained how it calculates a run rate, which matters, because a run rate is not recognized revenue. Bloomberg has noted Anthropic exited 2025 with a run rate above $9 billion against only about $4.6 billion actually booked. Skeptics are loud: New Constructs called it the most ridiculous IPO of 2026 and put fair enterprise value near $150 billion, and Michael Burry has compared the valuation to a bubble worth dozens of S&P 500 companies.
Two things decide how this reads in hindsight. First, whether fourth-quarter revenue keeps compounding at anything like 45% and pushes the run rate past $110 billion. Second, the price, with investors asked to accept something near $2 trillion while underwriting a ten-year, mostly non-cancelable compute commitment signed by a chief executive who publicly argues the industry should slow down.