OpenAI API
Input, cached input, and output tokens; some tools and media have separate units.
AI API. Metered pricing.
What the company publishes
- Pricing mechanism
Metered
- Chargeable unit
Input, cached input, and output tokens; some tools and media have separate units
- Included allowance
Not publicly specified
- Packaging
Model-specific API rates
- Credits or prepayment
Not publicly specified
- Overage treatment
Not publicly specified
- Enterprise exceptions
Not publicly specified
Checked Nov 3.
Source notes
The model table separates Input, Cached input, Cache writes and Output.
The page lists separate prices for built-in tools and media models.
Lago analysis
- Tradeoff
Granular rates track workload cost, but make spend harder to predict before a request runs.
- Billing and revenue work
Meter each billable token class and model separately. Reconcile tool charges alongside inference usage.
This is an implementation inference, not a claim about the company's internal systems or Lago usage.