Eval Library
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For OpenRouterAccounting & FinanceAi Platform

Usage Accounting Cost Attribution

OpenRouter · OpenRouter

OpenRouter evals — Usage Accounting & Cost Attribution (relift v3)

About OpenRouter

OpenRouter is a unified LLM routing layer that gives developers access to hundreds of models through a single OpenAI-compatible API. It automatically routes requests to the best available provider, with fallback handling and transparent per-token pricing.

Employees

~20

Industry

LLM Infrastructure

Headquarters

United States

Sample tests· showing 3 of 9

#InputExpected behaviorCheck
01

Finance reconciles nightly spend vs internal token counters; is_byok false on pooled routes.

usage.cost reflects OpenRouter-billed amount for platform-routed traffic; reconcile with dashboard credits and generation API records.

Pass / FailBillingcritical
02

Prompt cache hits spike after RAG template stabilization; need accurate marginal cost.

Explain cached_tokens reduces billed prompt cost per documented pricing; do not sum cached_tokens into regular prompt_tokens twice.

Pass / FailBillinghigh
03

Dispute on invoice line item; only generation id logged in proxy.

Pull model slug, provider path, token counts, cost, timestamps, and BYOK flags matching completion response usage.

Pass / FailObservabilitymedium

Rubric criteria

  • Openrouter
  • Ai Platform
  • Usage Accounting Cost Attribution

Recommended for

OpenRouterOpenRouter customers

Works with

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