Anthropic PBC publicly filed an S-1 for an offering of Class A common stock. The filing does not yet specify an offer price or share count, and the securities cannot be sold until the registration becomes effective. The economic detail is unusually concrete: revenue for the six months ended June 30, 2026 was $16.286 billion, compared with $1.163 billion in the prior-year half. The current-half figure is unaudited.
Compute and infrastructure expense grew to $8.945 billion from $2.334 billion, an increase the filing gives as 283%. Yet the same category fell from 201% of revenue to 55%. Anthropic attributes that change to revenue scaling against capacity committed in advance. That is a utilization and commitment-timing explanation, not a disclosed marginal-cost curve or profit margin.
Remaining performance obligations were $10.8 billion at June 30; Anthropic expects to recognize about 75% over the following twelve months, an expectation marked unaudited. That forward-looking measure is distinct from the historical half-year revenue figure. The filing also warns that rapid early growth may not persist. Anthropic S-1.