AI Prediction Index

One prediction, on the record

“Registered forecast for the combined annualized December revenue of OpenAI, Anthropic and xAI at the end of 2025: about $17 billion — merely tripling from ~$4.5 billion.”

Senior Research Analyst, Open Philanthropy

Combined annualized December revenue for OpenAI, Anthropic and xAI reached ~$30.5 billion in December 2025 — nearly 7x rather than 3x. Cotra wrote that she 'completely bombed the annualized revenue question.'