OpenAI Alleges Anthropic Inflates Revenue by $8 Billion in Leaked Memo

In a significant escalation of the AI platform wars, a leaked internal memo from OpenAI’s chief revenue officer Denise Dresser alleges that rival Anthropic has inflated its annualized revenue by approximately $8 billion through misleading accounting, a move designed to reshape investor and enterprise perceptions in the fiercely competitive sector.

"Their stated run rate is inflated," Dresser wrote in the memo, which was viewed by The Verge. "They use accounting treatment that makes revenue look bigger than it is, including grossing up rev share with Amazon and Google."

The memo claims that reversing this accounting practice—which reports the gross value of partner deals instead of net revenue—would reduce Anthropic’s announced $30 billion annualized run rate to about $22 billion. This adjustment would place Anthropic behind OpenAI, which has a reported run rate of around $24 billion from its partnership with Microsoft.

The allegation is more than a technical dispute; it's a direct assault on Anthropic's valuation and market standing as both companies compete for nine-figure enterprise deals and prepare for potential public offerings. The leak signals a new, aggressive phase of competition where financial narratives are wielded as strategic weapons to influence procurement decisions and investor confidence.

Dresser's memo goes beyond financial accusations, criticizing Anthropic's entire market position. It claims a "strategic misstep to not acquire enough compute is showing up in the product," leading to throttling and a less reliable experience for customers. The memo also frames Anthropic's strong position in coding-related tasks as a potential weakness, stating, "you do not want to be a single-product company in a platform war."

The document also provided a clear window into OpenAI's own strategy to win enterprise AI. The company plans to launch a new model, codenamed "Spud," described as its "smartest model yet." It also highlighted a new partnership with Amazon to distribute its models on the Bedrock platform, a move intended to capture enterprise customers on AWS and address limitations from its foundational, but sometimes restrictive, partnership with Microsoft. This dual-cloud strategy with both Microsoft and Amazon is a direct challenge to Anthropic's own deep integrations with Google and Amazon.

The memo frames the competition as a battle of narratives. Dresser wrote that Anthropic's story is "built on fear, restriction, and the idea that a small group of elites should control AI," contrasting it with OpenAI's message to "expand access, and help people do more."

For investors and enterprise buyers, this public feud complicates the vendor selection process. While raw model performance remains critical, the memo shows that platform stability, multi-product integration, and even the accounting behind revenue claims are now central to the competitive discourse. The dispute over revenue reporting could prompt greater scrutiny from auditors and customers for both companies, affecting valuation multiples and contract negotiations in the near term as the AI sector continues to mature.

This article is for informational purposes only and does not constitute investment advice.