npm install @reaatech/rag-eval-cost
# or
pnpm add @reaatech/rag-eval-cost

import { CostTracker, Pricing, BudgetManager, CostReporter } from "@reaatech/rag-eval-cost";
 
// Track costs with budget limits
const tracker = new CostTracker({ budgetLimit: 10.00, hardLimit: false });
 
const result = tracker.recordCost(
  "sample-1",
  0.025,
  { input: 500, output: 75, total: 575 },
  "faithfulness",
  "anthropic"
);
 
console.log(result.withinBudget); // true
console.log(tracker.getTotalCost()); // 0.025
 
// Generate report for CI
const reporter = new CostReporter();
const report = reporter.generateReport(tracker.getBreakdown());
console.log(report.totalCost);       // 0.025
console.log(report.costPerSample);   // 0.025

import { CostTracker, type CostTrackerOptions } from "@reaatech/rag-eval-cost";
 
const tracker = new CostTracker({
  budgetLimit: 50.00,
  hardLimit: true,
  alertThresholds: [0.5, 0.75, 0.9],
});

import { Pricing, type ModelPricing } from "@reaatech/rag-eval-cost";
 
const pricing = new Pricing();
 
// Look up pricing for a model
const config = pricing.getPricing("claude-opus", "anthropic");
console.log(config.input);  // 15.00 (per million tokens)
console.log(config.output); // 75.00 (per million tokens)
 
// Calculate cost from token counts
const cost = pricing.calculateCost("gpt-4", "openai", 1000000, 500000);
console.log(cost); // 25.00

import { BudgetManager } from "@reaatech/rag-eval-cost";
 
const manager = new BudgetManager({
  budgetLimit: 10.00,
  hardLimit: true,
  alertThresholds: [0.5, 0.75, 0.9],
});
 
const result = manager.recordSpend(7.00);
console.log(result.withinBudget); // true
console.log(manager.getBudgetUsage()); // 0.7
 
const alerts = manager.getActiveAlerts();
// → [{ threshold: 0.5, message: "Budget 50% used", level: "warn" }]

import { CostReporter } from "@reaatech/rag-eval-cost";
 
const reporter = new CostReporter();
 
const report = reporter.generateReport(breakdown);
// → { totalCost: 1.50, costPerSample: 0.075, trend: "stable", ... }
 
const xml = reporter.generateJUnitXml(breakdown);
// → <testsuite name="CostReport" tests="1" ...>

const tracker = new CostTracker({ budgetLimit: 10.00, hardLimit: true });
 
for (const sample of samples) {
  const { shouldStop } = tracker.recordCost(sample.id, sample.cost, sample.tokens, sample.metric);
  if (shouldStop) {
    console.warn("Budget exceeded — stopping evaluation");
    break;
  }
  await evaluateSample(sample);
}

import { CostReporter, CostTracker } from "@reaatech/rag-eval-cost";
 
const tracker = new CostTracker({ budgetLimit: 50.00 });
// ... run evaluations ...
 
const reporter = new CostReporter();
const xml = reporter.generateJUnitXml(tracker.getBreakdown());
writeFileSync("reports/cost-report.xml", xml);
 
// Fail CI if over budget
if (!tracker.isWithinBudget()) {
  console.error(`Budget exceeded: $${tracker.getTotalCost()}`);
  process.exit(1);
}