OpenAI Chief Revenue Officer Denise Dresser accused competitor Anthropic of overstating its financial figures in an internal memo. Dresser alleged that Anthropic inflates its annualized revenue run rate by approximately $8 billion through its accounting methods.

The memo claims Anthropic reports the full value of cloud partnership deals with Amazon and Google as revenue rather than its net share. OpenAI asserts that its own practice of reporting revenue net of Microsoft partnership costs aligns more closely with standards for public companies.

Anthropic countered that it recognizes gross revenue because it acts as the principal in these transactions, with cloud partners serving as a distribution channel. The dispute highlights intense competition for enterprise market share as both companies prepare for eventual IPOs.