Anthropic Opened Its Books and OpenAI Opened a Coupon Aisle -- AI Brief October 27

Good day %%first_name%%. Anthropic opened its books, and the first thing in them is an $80.7 billion loss. OpenAI, meanwhile, opened a coupon aisle. Also today: Bill Gates puts a name on the AI tax, Grok’s seven-minute Odyssey, and a Chinese open-weight model within three points of the frontier.

Anthropic Opens Its Books: $16.3B In, $80.7B Lost Reuters

* What happened: Anthropic made its IPO filing public on Monday, October 26, planning a Nasdaq listing under the ticker “ANT.” Reuters reports first-half 2026 revenue of about $16.3 billion against a net loss of $80.7 billion, largely from a rise in the fair value of bonds convertible into shares. CNBC puts $72.4 billion of that loss down to non-cash accounting rules on convertible debt.

* Why it matters: It is the first audited look inside the company behind Claude. CNBC says revenue rose 1,304% from $1.16 billion a year earlier, and Reuters expects the listing to set the benchmark for how Wall Street values labs like OpenAI. Reuters also notes some investors now value Anthropic near $1.5 trillion, down from about $2 trillion a week earlier, with an investor roadshow and offering expected in mid-to-late November.

* What everyone’s saying: Cautious optimism. DA Davidson’s Gil Luria told CNBC the net losses are “very small” once the accounting charge is set aside, and that the filing undercuts the claim that Anthropic “destroys value with every … AI query.” Freedom Capital’s Paul Meeks was “not wowed” but “modestly pleasantly surprised,” and CNBC flags a substantial slowdown in revenue growth from the second to the third quarter.

* My read between the lines: The $80.7 billion is mostly a scoreboard quirk: the convertible bonds got more valuable, so the company booked the rise as a loss. The line to watch is the blank one. The S-1 leaves “run-rate revenue,” reported in August at around $65 billion, empty and says it “is not a substitute for revenue.” And seven co-founders will hold 50.1% of the voting power through Founder LLC, so public buyers get a stake in a public benefit corporation, not a steering wheel.

📖 Further reading: Everyone’s panicking about the Anthropic IPO. They’re wrong. — my April take, written when the IPO was still a Bloomberg rumor: the risk was never the ticker symbol, it is how much of your workflow lives inside one company’s context.

Anthropic’s filing runs to more than 90 pages of risk factors. Your Tuesday probably has a smaller pile: the report nobody wants to assemble. Viktor is an AI agent that lives in your Slack and connects to 3,000+ tools, then does the work: reports, dashboards, code and campaigns. Not a chatbot. A coworker. New readers get $50 off their first month. Hire Viktor →

OpenAI Is Coupon-Clipping Anthropic’s Customers The Next Web

* What happened: The Information reported Saturday that OpenAI is discounting hard to pull enterprise customers away from Anthropic. TNW, citing the report, says Replit moved most of its AI spending to OpenAI after an offer of more than 30% off a contract worth over $100 million a year, and that Anthropic would not extend its earlier discount without a bigger spending commitment.

* Why it matters: The Decoder says Rippling’s coding work now runs 52% on OpenAI models, up from 16% in May, while Anthropic’s share fell from 57% to 18%. DataCamp’s CEO said OpenAI’s pricing cut his costs by 80 to 90 percent, and a US bank with more than $7 billion in assets had its ChatGPT seats doubled to 500 at no extra charge, paying under $7 per user instead of the usual $20 or more.

* What everyone’s saying: Replit’s Amjad Masad said at TechCrunch Disrupt it was “a decision based on both cost, partnership, and performance,” then added that “Replit remains model agnostic.” The Decoder says OpenAI is partly buying market share with its own margins, though more efficient models have cut its real costs too. TNW notes it has not independently verified the figures.

* My read between the lines: This landed the same weekend Anthropic’s filing went public, and The Decoder says Anthropic’s growth slowed from the second quarter to the third, per an investor memo. TNW adds that Anthropic ends discounts once customers use up committed tokens. OpenAI’s pitch is simple: we will be the cheap one while we are the ones who need the customers. A bank getting free seats is a customer-acquisition budget wearing a price list’s clothes.

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