Anthropic Passes OpenAI on Revenue Run-Rate: The Quick Brief

Anthropic reported a ~$47B annualized revenue run-rate on its May 2026 reading, putting it clearly ahead of OpenAI's most recent disclosure of $25–33B annualized for 2026. That is a roughly 35% lead and a genuine reversal in the AI race, which OpenAI had led for years. The climb over six months was near-vertical, and at that pace Anthropic is adding roughly $96M in annualized revenue per day.

The cause is the business model. About 80% of Anthropic's revenue is enterprise plus API, led by Claude Code and agentic coding, versus OpenAI's consumer-heavy ChatGPT base and its thin (~5–6%) paid conversion. Anthropic says 8 of the Fortune 10 and ~70% of the Fortune 100 are Claude customers, with 1,000+ companies each spending over $1M/yr. Selling to developers and enterprises, it turns out, compounds faster than chasing consumer fame.

Read the number carefully. These are self-disclosed annualized run-rates, not audited GAAP revenue, and the two companies disclosed in different windows. The $47B May figure is partly a Sacra forward-extrapolation rather than a clean company disclosure, while the ~$30B April reading sits in a separate window. The honest framing is "ahead on revenue run-rate, on the latest disclosures" — not "Anthropic earns more than OpenAI, audited."

The lead is not just on revenue. Anthropic's valuation reached ~$965B after a ~$65B round, edging past OpenAI's ~$852B, per CNBC. Anthropic also reported Q4 2025 profitability and has filed confidentially for an IPO, targeting around October 2026 — a listing that would finally test these self-reported run-rate numbers against audited books. Watch whether the enterprise-and-API mix keeps compounding, and whether OpenAI's next disclosure narrows the gap.