Official sources first
Rates are curated from provider-owned pricing or model documentation and retain a source URL plus verification date.
Methodology
How TokenMeter estimates cost
The calculator is deliberately simple: provider rates in, explicit workload assumptions in, decimal-safe arithmetic out. No hidden quality score or synthetic benchmark is mixed into the price.
Integer token quantities
Token counts are parsed as integers, including K/M/B shorthand, before Decimal arithmetic is used for currency calculations.
Context rules stay visible
When a provider charges more above a request-context threshold, the average input tokens per request selects the matching pricing band.
Fallback without fabrication
If the database is unavailable, public reads fall back to the last trusted snapshot instead of inventing or extrapolating rates.
What the estimate does not include
Taxes, negotiated enterprise discounts, regional pricing differences, non-token tool charges, storage, network egress, fine-tuning, asynchronous discounts not represented in the selected rate, or provider billing minimums. Treat the result as a planning estimate and confirm the linked official source before a purchasing decision.