Why it matters
Hacker News is where Anthropic's customers argue with its sceptics, and the thread is a fair map of what public-market buyers will ask on the roadshow. For a secondary holder, three of the six arguments are already settled in the filing. The other three, compute coverage, commoditization and the price, decide whether the post-split $58.90 Series H mark holds after the first day of trading.
1. The commitments
The argument. trjordan: "Everything comes back to whether the demand is really there... If the party continues, they'll go from $50b in revenue to $500b and be fine. But if they don't, it's going to hurt." Maxatar, 85 replies down: the commitments "amount to 10 billion a year commitments for 10 years... it's very misleading to claim that Anthropic needs to grow to $500b in revenue without making it clear that it's $500B in revenue per decade."
The filing. Both are right about different things. The commitments are front-loaded: SpaceXAI alone is about $3.1 billion a month once capacity is delivered in December 2026, and that agreement can be cancelled by either side on 90 days' notice after early 2027. Google, Amazon and Microsoft are take-or-pay through 2033 to 2036, "regardless of actual usage", with true-up payments if spend falls short. The filing adds that it "expects to continue to enter into additional arrangements." The $77 billion of partner financing facilities we covered this morning exist to fund part of this.
2. Revenue per dollar of compute
The argument. jialatsia: "Ant generates $2.08 in revenue for every $1 spent on compute which is up from just $0.40 in Q1 2025. The payback period for compute is just insane." deepwoods, the main dissent: "80% of their revenue comes from consumption-based pricing... this revenue is not especially reliable. If and when OpenAI gets the upper hand again, the consumption-based revenue could crater."
The filing. First-half 2026 revenue was $16.3 billion against $8.9 billion of compute and infrastructure, $1.82 per dollar for the half and higher in the second quarter. Compute was 160% of revenue in 2025. The company's own line is that second-quarter revenue grew 1,368% year on year against 300% growth in compute. On concentration: no customer above 10%, top five about 25% of nine-month revenue, and the share outside the top five rose from 64% to 79% between the first and third quarters. The filing also says the revenue is "primarily consumption-based, and much of it is not subject to long-term contractual commitments." deepwoods has that right.
3. The $81 billion loss
The argument. epsteingpt: "$81B net loss in first 6 months of 2026 alone." BeetleB, in reply: "The huge number is actually a sign of their success. Most of those losses were pegged to equity... they write it as a loss even though they didn't lose a penny."
The filing. The GAAP net loss for the half was $80.7 billion, of which $72.4 billion is the change in fair value of convertible notes, derivatives and SAFEs. Adjusted operating income was positive $1.6 billion, a 10% margin, and the operating loss before adjustments was 4% of revenue. The split, the lockup and the per-share math has the table.
4. Can anything compound from $2 trillion?
The argument. jmuguy, 179 replies: "If we want them to grow even half as much as Amazon they'd have to be worth 5.9 quadrillion dollars by 2056." atleastoptimal: "If he buys Anthropic now at $2T and they go to zero, he's fucked, but if they go to $20T, we're all fucked." columk: "the only purpose of an IPO is exit liquidity for employees and early investors."
The filing. No price, no share count, no proceeds. The one number that fixes the scale is the Public Benefit Fund grant: 846.8 million shares described as 5% of fully diluted stock, which implies about 16.9 billion shares. On that count $1 trillion is about $59 a share, the Series H price almost exactly.
5. Commoditization
The argument. cmiles8, 92 replies: "There are a lot of parallels to the WeWork S1. They've made absolutely massive forward cash commitments, on a business that's increasingly commoditized." jacquesm, the most-replied comment in the thread: "Today's prices are the ceiling... AI will converge on energy costs + capex write-off + margin and the latter will be a race to the bottom." cloverich, against: "As of 5.5 I stopped using other models all together... My rational brain says Anthropic has no moat and this is temporary. But if I look at the actions of myself and the most competent coders around me, that is not what we are doing."
The filing. The risk factor nickysielicki quoted is the whole of what the company says about open-weight models: they "may capture a portion of the market for certain use cases, which could exert pricing pressure." The filing does disclose 1,900 customers above $1 million of trailing revenue and net revenue retention of about 900%, and says that over 90% of contributions to its own codebase in September were written by Claude. It does not disclose pricing trends per token.
6. Who is selling
The argument. baq: "Amount of early money waiting to exit is absolutely staggering... S-1 states directly that some of the shares sold in the IPO are sold by current shareholders." tinyhouse: "I have no clue how they keep their employees around once the 6 month lockup period ends."
The filing. Five of the seven co-founders are listed as selling stockholders, amounts blank. The lockup is not six months flat: non-founder employees can sell 10% on the first day and 35% more after full-year results, investors below 0.5% release in tranches from day 27, and the founders and holders above 0.5% wait up to a year. The founder cap table and the tenders they sold into are in the companion piece.
One line from the filing that the thread kept returning to, via guitarlimeo: "never let your company be worth a dollar more than it is actually worth." The amendment with the price range will show what the company thinks that is.
Sources
- Hacker News, "Anthropic S-1", October 26, 2026. Comments quoted by handle, lightly trimmed, as of October 27.
- Anthropic, PBC Form S-1, filed October 26, 2026 (SEC accession 0001628280-26-067168): Contractual Obligations, Infrastructure Service Arrangements; Key Factors Affecting Our Performance; Risk Factors; Principal and Selling Stockholders; Shares Eligible for Future Sale.
- PMView: Anthropic, secondary market price.
For informational purposes only. Nothing here is investment advice or an offer or solicitation to buy or sell any security.
