OpenAI and Anthropic's Divergent Revenue Accounting Clouds Investor Valuations

OpenAI and Anthropic, the two leading artificial intelligence companies competing for market dominance, calculate their revenue in fundamentally different ways, creating confusion among investors trying to directly compare their financial growth. The distinction centers on how each company accounts for sales made through cloud-provider partnerships—a methodological gap that inflates headline revenue figures by billions of dollars and blurs the true competitive picture.