Function calculateApiCostOpenAI

src/shared/cost.ts:92–116

(
	modelInfo: ModelInfo,
	inputTokens: number,
	outputTokens: number,
	cacheCreationInputTokens?: number,
	cacheReadInputTokens?: number,
	serviceTier?: ServiceTier,
)

// For OpenAI compliant usage, the input tokens count INCLUDES the cached tokens.
export function calculateApiCostOpenAI(
	modelInfo: ModelInfo,
	inputTokens: number,
	outputTokens: number,
	cacheCreationInputTokens?: number,
	cacheReadInputTokens?: number,
	serviceTier?: ServiceTier,
): ApiCostResult {
	const cacheCreationInputTokensNum = cacheCreationInputTokens || 0
	const cacheReadInputTokensNum = cacheReadInputTokens || 0
	const nonCachedInputTokens = Math.max(0, inputTokens - cacheCreationInputTokensNum - cacheReadInputTokensNum)
	const effectiveModelInfo = applyLongContextPricing(modelInfo, inputTokens, serviceTier)

	// For OpenAI: inputTokens ALREADY includes all tokens (cached + non-cached)
	// So we pass the original inputTokens as the total
	return calculateApiCostInternal(
		effectiveModelInfo,
		nonCachedInputTokens,
		outputTokens,
		cacheCreationInputTokensNum,
		cacheReadInputTokensNum,
		inputTokens,
		outputTokens,
	)
}

export const parseApiPrice = (price: any) => (price ? parseFloat(price) * 1_000_000 : undefined)