# What is AI search monitoring?

AI search monitoring is the practice of asking AI assistants the questions your buyers ask, repeatedly, and recording which brands and sources each answer names.

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Limelit monitors all six engines on every account, including the free one; it only measures the prompts you track, not every question a buyer could ask.

## Definition

AI search monitoring is the practice of asking AI assistants the questions your buyers ask, repeatedly, and recording which brands and sources each answer names. Limelit monitors ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews and Google AI Mode for the prompts you track, and turns the answers into Visibility, Share of voice, sentiment and citation numbers.

## More terms

- [AI share of voice](https://limelit.co/glossary/ai-share-of-voice)
- [AI visibility score](https://limelit.co/glossary/ai-visibility-score)
- [llms.txt](https://limelit.co/glossary/llms-txt)
- [AI citation](https://limelit.co/glossary/ai-citation)
- [The full glossary](https://limelit.co/glossary)

Questions

## The things people ask us first.

### Which AI engines does Limelit monitor?

ChatGPT, Claude, Perplexity, Gemini, Google AI Overviews and Google AI Mode, on every account, with no engine paywall.

### Why ask the same question more than once?

Because AI answers vary from run to run. One answer is an anecdote; the same prompt answered across days and engines is a measurement.

### Does AI search monitoring change what the engines say?

No. Monitoring only asks and records. Changing the answers takes work on the pages and sources the engines read.

### Do I need an account to try it?

No. The free AI search report runs your buyers' questions across the six engines and emails you the result.