---
title: 'What is a check?'
question: true
order: 50
lang: en
license: CC-BY-4.0
canonical: 'https://markleex.com/@epovest/faq/what-is-a-check'
markleex:
  entity: '@epovest'
  url: 'https://markleex.com/@epovest'
  version: 2
  published: '2026-08-08T10:28:14+00:00'
  updated: '2026-08-08T10:58:02+00:00'
  trail:
    - label: 'Epovest, questions and answers'
      url: 'https://markleex.com/@epovest/faq'
---

One prompt, asked to one AI engine, once. That is the unit everything is counted and billed in.

A tracker carrying 5 prompts on 3 engines therefore runs 15 checks each time it measures. That count holds at HD resolution, which asks each prompt a single time.

Higher resolutions ask the same prompt several times per check and read a rate rather than one answer, which lets you slice engine by engine and topic by topic. Full HD multiplies the unit by three, 4K by six, 8K by nine. HD is the default and follows a trend; you raise the resolution when you want to analyse in detail.

The full grid is on [the pricing page](https://epovest.com/en/pricing).