Struct PriceTable 

pub struct PriceTable { /* private fields */ }

A lookup from provider/model to ModelPrice.

ponytail: the embedded PriceTable::defaults are a calibration knob, not gospel — list prices drift and enterprise contracts differ. In prod, load overrides from config via PriceTable::with_override; the defaults just make the common case work out of the box.

Implementations

impl PriceTable

pub fn new() -> Self

An empty table.

pub fn defaults() -> Self

Built-in prices for the common frontier models (USD / 1M tokens, approximate list prices — a starting point to be overridden per deployment).

pub fn with_override(self, model: impl Into<String>, price: ModelPrice) -> Self

Insert or replace a model’s price, returning self for chaining.

pub fn get(&self, model: &str) -> Option<ModelPrice>

Look up a model’s price by its provider/model key.

pub fn cost_usd(&self, model: &str, input: u64, output: u64) -> Result<f64>

Cost in USD of a call to model with the given token counts.

Errors

Returns Error::UnknownModel if the model has no price entry.

pub fn baseline_usd( &self, top_model: &str, input: u64, output: u64, ) -> Result<f64>

The counterfactual baseline: what the request would have cost had it gone straight to top_model (the ladder’s top rung) with the served token counts.

This is an estimate — the top model might have emitted a different number of tokens — but token counts of served output are the fair, auditable proxy the trace records.

Errors

Returns Error::UnknownModel if top_model has no price entry.

Trait Implementations

impl Clone for PriceTable

fn clone(&self) -> PriceTable

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for PriceTable

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for PriceTable

fn default() -> PriceTable

Returns the “default value” for a type.