Leon Serfaty
53 lines
1.4 KiB
TypeScript
53 lines
1.4 KiB
TypeScript
import { prisma } from "@/lib/db";
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import type { TokenUsage } from "./types";
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// Rough 2026 unit prices (USD). Tune in one place; admin cost dashboards read AiCostLog.
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const PRICE = {
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gptInputPer1k: 0.0025,
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gptOutputPer1k: 0.01,
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elevenPer1kChars: 0.3,
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dallePerImage: 0.04,
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};
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export function scriptCostUsd(usage: TokenUsage): number {
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return round4(
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(usage.inputTokens / 1000) * PRICE.gptInputPer1k +
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(usage.outputTokens / 1000) * PRICE.gptOutputPer1k
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);
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}
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export function audioCostUsd(characters: number): number {
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return round4((characters / 1000) * PRICE.elevenPer1kChars);
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}
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export function artCostUsd(images: number): number {
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return round4(images * PRICE.dallePerImage);
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}
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export interface CostEntry {
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provider: "openai" | "elevenlabs";
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operation: "script" | "audio" | "art" | "repurpose";
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units: number;
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costUsd: number;
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episodeId?: string;
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userId?: string;
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}
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/** Record an AI usage/cost line for the admin monitoring dashboard. */
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export async function recordCost(entry: CostEntry): Promise<void> {
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await prisma.aiCostLog.create({
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data: {
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provider: entry.provider,
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operation: entry.operation,
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units: entry.units,
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costUsd: entry.costUsd.toFixed(4),
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episodeId: entry.episodeId,
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userId: entry.userId,
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},
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});
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}
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function round4(n: number): number {
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return Math.round(n * 10000) / 10000;
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}
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