Anthropic Reveals $16.8B Q3 Revenue Ahead of a Potential $2T IPO

What happened

On October 14 (Wednesday, San Francisco time), Anthropic hosted a pre-IPO investor day at its San Francisco headquarters, briefing institutional investors on its business and financials in a closed-door session. According to Bloomberg, invitations went out just before the event, making it the main venue for senior executives to field questions from prospective investors ahead of the IPO.

An investor who attended the meeting told Reuters that Anthropic disclosed third-quarter revenue of $16.8 billion. The Wall Street Journal reported from the scene that a line of black Suburbans was parked outside the company's San Francisco office on Wednesday, and investors filed out around 4 p.m. Pacific Time holding green baseball caps printed with the word "thinking."

Key facts

1. Q3 revenue: $16.8 billion, $67.2 billion annualized. According to an attendee cited by Reuters, revenue was $4.7B in Q1 and $11.6B in Q2, a 45% sequential gain in Q3.
2. Slower growth: Sequential growth was 143% in Q2, falling to 45% in Q3; the annualized run rate already reached $65 billion in July, only slightly below Q3's $67.2 billion.
3. Adjusted profit: The company said it was profitable in Q3 on an "adjusted basis," without disclosing which costs were excluded.
4. IPO timeline: The IPO is expected on Nasdaq in November. Per Bloomberg, formal marketing could start as early as the week of November 9, with the listing set after the Nov 3 US midterm elections and before Thanksgiving, targeting a valuation above $2 trillion.
5. Raise size: The Wall Street Journal previously reported the IPO could raise as much as $100 billion; the company confidentially filed with the SEC earlier this year, and the public prospectus has not been published.
6. Year-end outlook: Investors expect Anthropic's annualized revenue to top $110 billion by year-end, per the Wall Street Journal.
7. Valuation range: People familiar with the matter told Bloomberg that investors see a fair valuation in the $1.8–$2 trillion ballpark, and the company expects its IPO to match or exceed the size of SpaceX's listing.
8. Cost base: 2025 revenue reached nearly $4.6 billion, up twelvefold; the company lost more than $8 billion on an operating basis in 2025, excluding writedowns of fundraising-related liabilities, and has committed at least $518 billion over a decade for cloud services, computing and infrastructure.
9. Market reaction: The same trading day, the Nasdaq composite fell 1.9% and CoreWeave crashed 15.5%; Dell, AMD and Snowflake dropped 11.4%, 5.7% and 6.3% respectively.
10. Backers and compute: Amazon and Google are both investors in Anthropic and suppliers of the computing power used to train and run its Claude models.

Background

Anthropic is going public ahead of its main rival. OpenAI has postponed its IPO plans and is seeking a new round of at least $30 billion at a valuation of around $1.4 trillion, per Bloomberg; Nasdaq Private Market data put Anthropic's latest valuation at $1.35 trillion and OpenAI's at $985.59 billion.

Earlier in October, confusion over OpenAI's annualized revenue figure rattled markets: media reports initially put it at $70 billion, before the Financial Times revised it to near $50 billion, saying the revised figure excluded cloud-partner revenue. CNBC reported that the episode showed how different revenue-reporting definitions can shape investors' judgment of AI demand.

Regulatory uncertainty remains: the US government previously designated Anthropic a national security supply-chain risk; in September the DC Circuit upheld the designation 2–1, and Anthropic has sought a rehearing.