ModelPricing class

Per-token price for a single model variant, expressed in USD per token.

Provider price sheets are usually quoted per 1M tokens. The factory ModelPricing.perMillion converts that to the per-token unit this package uses internally.

Annotations

• @immutable

Constructors

ModelPricing({required double inputRate, required double outputRate, double? cachedInputRate})

Build pricing where rates are already in USD-per-token.

const

ModelPricing.perMillion({required double inputPerMillion, required double outputPerMillion, double? cachedInputPerMillion})

Build pricing from provider-style "USD per 1M tokens" numbers.

const

Properties

cachedInputRate → double?

USD per cached input token. null ⇒ no separate cache rate (falls back to inputRate).

final

hashCode → int

The hash code for this object.

no setter, override

inputRate → double

USD per input token (non-cached).

final

outputRate → double

USD per output token.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

cost({required int tokensIn, required int tokensOut, int cachedTokensIn = 0}) → double

Calculate the total billed cost for a single call.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

override

Operators

operator ==(Object other) → bool

The equality operator.

override

Constants

free → const ModelPricing

Free-tier pricing (everything is $0).