---
title: 'Which AI engines does Epovest measure?'
question: true
order: 40
lang: en
license: CC-BY-4.0
canonical: 'https://markleex.com/@epovest/faq/which-ai-engines-does-epovest-measure'
markleex:
  entity: '@epovest'
  url: 'https://markleex.com/@epovest'
  version: 2
  published: '2026-08-08T10:28:04+00:00'
  updated: '2026-08-08T10:57:58+00:00'
  trail:
    - label: 'Epovest, questions and answers'
      url: 'https://markleex.com/@epovest/faq'
---

Six: ChatGPT, Claude, Gemini, Perplexity, Mistral and Grok. You choose the ones you want on each tracker, and the price follows that choice rather than a plan.

Your prompts go out verbatim, through the engines' official APIs, and every answer comes back archived with its cited sources, dated and re-readable at any time.

Each engine keeps its own reading. The sources one engine leans on are rarely the sources another leans on, so the numbers are held engine by engine rather than folded into a single average: that is what tells you where a story holds and where it does not yet.