basant307/AI_Governance_Project

1/**2 * @license3 * Copyright 2025 Google LLC4 * SPDX-License-Identifier: Apache-2.05 */6 7export interface ModelPricing {8  inputPerMillionTokens?: number;9  outputPerMillionTokens?: number;10}11 12export function calculateCost(args: {13  inputTokens: number;14  outputTokens: number;15  pricing?: ModelPricing;16}): number | null {17  const { inputTokens, outputTokens, pricing } = args;18 19  if (!pricing) return null;20 21  const inputCost =22    pricing.inputPerMillionTokens != null23      ? (inputTokens / 1_000_000) * pricing.inputPerMillionTokens24      : 0;25 26  const outputCost =27    pricing.outputPerMillionTokens != null28      ? (outputTokens / 1_000_000) * pricing.outputPerMillionTokens29      : 0;30 31  const total = inputCost + outputCost;32  return total > 0 ? total : null;33}34