The quick read
- Estimate light, typical and heavy usage, including retries and background work.
- Choose a structure that fits adoption patterns and budgeting needs.
Model actual use
Seat-based plans typically charge for access by a defined user unit, while usage-based plans meter specified activity. Real products may combine subscriptions, credits and overage charges. Read what the unit includes and what happens when the allowance is exceeded.
Compare realistic scenarios
Estimate light, typical and heavy usage, including retries and background work. For seat plans, consider inactive accounts and whether each role needs the same access. For metered systems, include tool calls, storage or other billable components where applicable.
Add operating controls
Choose a structure that fits adoption patterns and budgeting needs. Establish ownership, usage visibility and alerts before scaling. Review cost alongside successful tasks: a cheaper request that repeatedly fails may cost more to turn into a useful result.
Sources & notes
An editorial decision framework, not a scored benchmark or hands-on test.
developers.openai.com — official reference
developers.openai.com — official reference
Sources reviewed for the September 2026 launch edition.