SemiAnalysis researcher authoring the tokconomics newsletter on Anthropic/OpenAI business models, API margins, and frontier lab competitive dynamics.
no scored calls yet — needs a stated position or a categorical verdict, with a matured window vs SPY
Anthropic's 80%+ API/enterprise revenue mix yields 85%+ gross margins on API, enabling Q2 profitability and potential $1B+ operating profit in Q3, allowing aggressive reinvestment in training to extend model capability lead over OpenAI.
AWS captures 20-30% revenue share on Anthropic API via Bedrock — a high-margin stream — but Anthropic's growing leverage and favorable initial terms (to bootstrap Trainium) could lead to deal restructuring as Anthropic's direct API share rises.
OpenAI's net new ARR is now comparable to Anthropic's month-on-month after Codeex and 5.5/5.6 releases, with enterprise API share flipping from 40% to 60% in Q2, signaling a sustainable business model shift away from consumer-subsidized losses.