OpenAI, Anthropic Draw 80% of Enterprise Revenue From Top 1%

Competition in generative artificial intelligence is increasingly being measured by commercial traction as well as model performance. Anthropic, the maker of Claude, has emerged as OpenAI’s strongest challenger, with Claude Code gaining adoption among developers and businesses. The shift matters because revenue growth and operating leverage are becoming key tests of whether heavy investment in AI infrastructure can translate into sustainable businesses.

Anthropic generated $11.6 billion in revenue in the second quarter of 2026 and posted a small operating profit, The Wall Street Journal reported. That marked the first time it surpassed OpenAI, which recorded $6.7 billion in revenue during the period. Anthropic’s advance was driven largely by the continued success of Claude Code, while slowing growth at ChatGPT contributed to widening losses at OpenAI, according to the report.

OpenAI has emerged as one of the world’s fastest-growing technology companies as demand for AI coding software and enterprise subscriptions accelerates. Its expanding revenue base is crucial to funding the enormous computing and research costs behind frontier models. Competition from Anthropic and lower-cost alternatives, however, is increasing pressure on OpenAI to defend its pricing power and demonstrate a durable path to profitability before entering public markets.

As of August 2026, OpenAI’s annualized revenue had doubled to more than $40 billion. The company is reshaping its senior sales organization and cutting prices for some AI models to reinforce its position among corporate customers. OpenAI and Anthropic have both submitted confidential initial public offering filings, according to the reports, intensifying efforts to improve their financial structures and monetization as the rival AI developers prepare for potential listings.

Anthropic and OpenAI are competing to dominate the commercial market for generative artificial intelligence, expanding through model subscriptions, application programming interfaces and enterprise services. Annual recurring revenue, or ARR, extrapolates the current revenue pace over 12 months and is not the same as revenue already booked. Even so, the measure offers investors and customers a gauge of demand, business momentum and the companies’ ability to finance costly computing infrastructure.

As of July 2026, the latest data put Anthropic’s ARR at $74.1 billion, well above OpenAI’s $41.3 billion and giving the Claude developer a substantial lead in commercial scale. OpenAI is closing the gap rapidly, however, with its annualized revenue climbing nearly 30% over the past two months. The acceleration underscores intensifying competition between the two AI companies for enterprise customers, computing capacity and the revenue needed to support further model development.

OpenAI has long led the enterprise generative AI market, but Anthropic is expanding its corporate customer base through Claude. Payments company Ramp tracks adoption using U.S. corporate spending data, which indicates that businesses are diversifying vendor risk and that competition among model providers is extending beyond technical performance to commercial adoption.

Ramp data showed that Anthropic’s adoption among U.S. businesses rose sharply in March, while the latest reports said it surpassed OpenAI for the first time. OpenAI had previously remained the leader with a 35% adoption rate, but its enterprise growth had begun to level off. The data did not disclose purchasing amounts, but indicated that the gap between the two companies was narrowing rapidly.

OpenAI and Anthropic are competing for generative AI enterprise customers and cloud computing capacity. OpenAI Chief Revenue Officer Denise Dresser argues that Anthropic’s growth narrative rests on particular accounting methods and reliance on a single product. Her allegations also underscore intensifying competition between the companies for customers, funding and market valuations.

As of July 19, 2026, a leaked internal OpenAI memo showed Dresser accusing Anthropic of overstating its annualized revenue by about $8 billion and criticizing its computing capacity and product strategy. The memo also revealed that OpenAI plans to broaden its sales channels through Amazon and build a DeployCo deployment engine to accelerate enterprise adoption and market expansion.