Token unit
Catalog row in Vendor License Metrics · Cited
- Unit
- Other
- Aliases
- Scale Tier unit; TPM bundle
- Definition
- Scale Tier "lets you purchase a set number of API input and output tokens per minute (known as “token units”) upfront for access to one specific model snapshot."
- Counting rules
- TPM for billing is averaged over 15-minute intervals aligned to the top of the hour; tokens above the entitlement are billed at pay-as-you-go rates on Fast mode. For GPT-5.4 and GPT-5.5 a combined input and output bundle is sold; output tokens count at the model's output-to-input price ratio.
- Floors / minimums
- "Each token unit is purchased for a minimum of 30 days."
- Applies to products
- OpenAI API (Scale Tier)
- Related metrics
- Product category