Function tokensToUSDCost

src/utils/modelCost.ts:131–142

* Calculates the USD cost based on token usage and model cost configuration

(modelCosts: ModelCosts, usage: Usage)

 * Calculates the USD cost based on token usage and model cost configuration
 */
function tokensToUSDCost(modelCosts: ModelCosts, usage: Usage): number {
  return (
    (usage.input_tokens / 1_000_000) * modelCosts.inputTokens +
    (usage.output_tokens / 1_000_000) * modelCosts.outputTokens +
    ((usage.cache_read_input_tokens ?? 0) / 1_000_000) *
      modelCosts.promptCacheReadTokens +
    ((usage.cache_creation_input_tokens ?? 0) / 1_000_000) *
      modelCosts.promptCacheWriteTokens +
    (usage.server_tool_use?.web_search_requests ?? 0) *
      modelCosts.webSearchRequests
  )
}

export function getModelCosts(model: string, usage: Usage): ModelCosts {
  const shortName = getCanonicalName(model)