Function applyLongContextPricing

src/shared/cost.ts:10–40

(modelInfo: ModelInfo, totalInputTokens: number, serviceTier?: ServiceTier)

}

function applyLongContextPricing(modelInfo: ModelInfo, totalInputTokens: number, serviceTier?: ServiceTier): ModelInfo {
	const pricing = modelInfo.longContextPricing
	if (!pricing || totalInputTokens <= pricing.thresholdTokens) {
		return modelInfo
	}

	const effectiveServiceTier = serviceTier ?? "default"
	if (pricing.appliesToServiceTiers && !pricing.appliesToServiceTiers.includes(effectiveServiceTier)) {
		return modelInfo
	}

	return {
		...modelInfo,
		inputPrice:
			modelInfo.inputPrice !== undefined && pricing.inputPriceMultiplier !== undefined
				? modelInfo.inputPrice * pricing.inputPriceMultiplier
				: modelInfo.inputPrice,
		outputPrice:
			modelInfo.outputPrice !== undefined && pricing.outputPriceMultiplier !== undefined
				? modelInfo.outputPrice * pricing.outputPriceMultiplier
				: modelInfo.outputPrice,
		cacheWritesPrice:
			modelInfo.cacheWritesPrice !== undefined && pricing.cacheWritesPriceMultiplier !== undefined
				? modelInfo.cacheWritesPrice * pricing.cacheWritesPriceMultiplier
				: modelInfo.cacheWritesPrice,
		cacheReadsPrice:
			modelInfo.cacheReadsPrice !== undefined && pricing.cacheReadsPriceMultiplier !== undefined
				? modelInfo.cacheReadsPrice * pricing.cacheReadsPriceMultiplier
				: modelInfo.cacheReadsPrice,
	}
}

function calculateApiCostInternal(
	modelInfo: ModelInfo,