ChatGPT Business Premium seats cost $125 per user monthly or $100 annually, with 5x Standard usage and no five-hour limit; Standard stays at $25 monthly or $20 annually.
Five Standard seats cost the same as one Premium seat and carry the same total usage, so Premium buys a single identity and the removal of the five-hour ceiling, not cheaper capacity.
OpenAI is offering reported workspace credits of $100 per qualifying Premium seat, up to five seats, for workspaces signing up before August 20, 2026.