Anthropic's Annualized Revenue Hits $65 Billion, Leaving OpenAI Behind

Anthropic's annualized revenue run rate — a measure of how much money the company would take in over a full year at its current pace — surpassed $65 billion at the end of July 2026, a sevenfold jump from roughly $9 billion a year earlier, according to reports from Bloomberg, Reuters, and CNBC published August 17 (TechCrunch; Reuters; CNBC).

The climb has been steep and getting steeper. Anthropic's run rate sat at roughly $1 billion around its Series F funding round in September 2025, when it raised $13 billion led by ICONIQ at a $183 billion post-money valuation (the company's valuation after that investment was added). By August 2025 it had crossed $5 billion. By April 2026, when Anthropic announced an expanded compute partnership with Google and Broadcom, the figure stood above $30 billion. In May 2026 it reached $47 billion. The jump to $65 billion by end of July means the company added roughly $18 billion in annualized run rate in two months.

For comparison, OpenAI doubled its own annualized revenue to $40 billion from $20 billion at the end of 2025, according to a Bloomberg report from the week of August 13. Anthropic now leads its closest competitor by a meaningful margin on this metric.

The revenue surge arrives as both companies prepare for public listings. Anthropic and OpenAI have each filed confidential IPO paperwork. Anthropic is expected to reach public markets first, possibly as soon as fall 2026. Investors expect Anthropic to close 2026 with an annualized run rate between $100 billion and $120 billion, according to the Financial Times. Reuters further reported that Anthropic is projecting 2028 revenue of roughly $190 billion to $200 billion, with its IPO valuation hinging on those forecasts (Reuters).

Anthropic plans to seek a public valuation of $2 trillion or more at its IPO, which would be the largest market debut on record. The company was last valued at $965 billion in late May 2026, when it closed a $65 billion Series H round led by Altimeter Capital, Dragoneer, Greenoaks, and Sequoia Capital. That round followed a $30 billion Series G in February 2026 at a $380 billion post-money valuation.

Anthropic's product cadence through 2026 has been aggressive. Claude Opus 5 launched on July 24, described as a step-change improvement for the Opus tier — Anthropic's most capable model — powering long-running agents (autonomous AI programs that carry out multi-step tasks) with gains in coding and professional work. Claude Sonnet 5 followed on June 30, delivering frontier performance across coding, agents, and professional work at scale. Claude Code, the company's coding agent, has its own run-rate revenue exceeding $2.5 billion as of February, more than doubling since the start of the year.

The company has also moved to strengthen its safety posture alongside its commercial growth. On June 30, Anthropic proposed an industry-wide framework for scoring jailbreak severity — measuring how easily users can bypass an AI model's safety guardrails — in partnership with Amazon, Microsoft, Google, and other Glasswing partners. On July 30, it disclosed it was investigating three real-world incidents in its cybersecurity evaluations. August 7 brought improvements to Fable 5's biology safeguards, and on August 14 the company published a technical explanation of how Claude's text watermark works. On July 27, Anthropic published its formal position on open-weights models (AI models whose underlying parameters are publicly available for download and modification).

On the organizational side, Mariano-Florentino (Tino) Cuéllar joined as Chief Global Affairs Officer on August 4. Cognizant expanded its partnership with Anthropic on July 27 to bring Claude to enterprise clients. Anthropic also announced a $20 million donation to Public First on July 21 and published a research agenda for its Economic Futures Research Fund on July 22.

The broader context here is the velocity of the revenue ramp relative to prior technology cycles. Anthropic went from $1 billion to $65 billion in annualized run rate in roughly eleven months. Whether that pace is sustainable through the $100 to $120 billion year-end target investors have set, and whether public markets will support a $2 trillion valuation against 2028 projections of $190 to $200 billion, are the two questions that will define the IPO. The 2028 figures are forward-looking projections sourced to Reuters, not reported actuals, and the gap between current run rate and those projections is wide enough that execution risk is real.

What is measurable now is the gap between Anthropic and OpenAI on run-rate revenue, the compression of Anthropic's valuation timeline from $183 billion to nearly $1 trillion in under nine months, and a product and safety roadmap that has not slowed to accommodate either. The IPO filing window will tell us how public markets price that combination.