129 tracked AI models list OpenAI as a developer. 17 of them are frontier models — among the largest training runs of their moment. The largest is GPT-4.5, at 3.8 x 10^26 FLOP (February 2025). The most recent tracked release is from July 2026.
Its most recently reported annualized revenue is $25B. It was last valued at $852B. It employs around 4,000 people.
