Anthropic’s leaked IPO prospectus shows an AI lab that grew revenue nearly twelvefold to $4.6 billion in 2025 while posting a $42 billion net loss and $518 billion in future compute obligations, a scale of spending that makes the mooted $2 trillion valuation a bet on infrastructure intensity rather than profitability.
The revenue and the burn
The 2025 top line came in at roughly $4.6 billion, up from about $380 million in 2024, according to the prospectus seen by Reuters. Compute and infrastructure consumed $7.33 billion in cash last year alone. The $42 billion net loss includes a $34 billion noncash accounting charge, meaning the cash burn was lower but the obligation to issue shares to cover that charge remains. The company has not disclosed the premium to its last private valuation, the consideration mix for any public offering, or break-fee terms.
The dilution arithmetic
Ross Hendricks of Porter and Company flagged the $34 billion noncash charge as a future dilution engine. If Anthropic settles that charge with equity, early investors absorb a larger slice of the share count before the IPO even prices. The prospectus devotes 80 of its 261 pages to risk factors, per the Financial Times, a disclosure ratio that signals the company knows the model is unproven at this scale.
Customer concentration
Jake Williams, a cybersecurity risk expert, noted that nearly a quarter of 2025 revenue came from two customers. The prospectus does not name them. That concentration means a single contract renewal or a shift in a hyperscaler’s roadmap could move the revenue needle materially, a structural risk that the $2 trillion valuation framework appears to treat as rounding error.
The valuation logic
Gary Marcus, a consistent AI skeptic, calculated the implied multiple at negative fifty times 2025 losses. His point: the market framework rewards capital intensity as a moat, not earnings power. Lale Akoner of eToro said the $8.1 billion operating loss is the more meaningful figure, and that a successful Anthropic listing would set the template for OpenAI’s expected offering while pulling capital from other tech names. The company targets a launch after the November midterms, per Reuters. Claude Opus 5.5 shipped last week.