What Is AI Detect? Features, Free Limits, and Results

AI Detect is a web tool for reviewing text for patterns associated with AI-generated writing. It displays a detection score alongside readability and grade-level information, and paid plans include a humanizer for revising drafts. These features support review; they do not verify who wrote a document or certify its accuracy.

This guide explains the workflow and its limits so you can decide whether it fits your task. For a first check, open the AI detector.

What can you check for free?

The free plan currently permits five detection scans per day with up to 750 words per scan, subject to the service's usage controls. Read the allowance messages in the tool before submitting a passage. The pricing page lists paid limits and the features available with each plan.

A word allowance is not a promise that every kind of document is equally suitable for detection. Use coherent text and interpret short excerpts cautiously. A result for one excerpt does not describe the parts of a longer document that were not scanned.

How to run a text check

Paste eligible text into the detector and choose Detect AI. Keep the original wording if you need to record or compare the result. Wait for the analysis to finish before interpreting the displayed score.

If the service reports an error, treat the check as unsuccessful rather than an authorship conclusion. Retry when available or continue with a manual review of the document. An unavailable score is more useful than a number that does not represent a completed analysis.

Before submitting private or unpublished material, confirm you have permission and review the privacy policy. Document uploads and humanization require a paid plan; free checks use pasted text.

Read the three measures separately

The detection score is a model signal associated with AI-generated patterns. Higher values indicate a stronger AI signal in the detection provider's scoring direction. This is not a verified percentage of words authored by a machine, and it does not identify a particular writer or generation service. See methodology for the interpretation and limitations.

Readability estimates how easy the text is to read. Grade level estimates reading difficulty on a school-grade scale. Neither establishes authorship. A technical document can be difficult to read regardless of whether it was written by a person or a model.

What does the humanizer do?

The humanizer revises phrasing and structure when included in your plan. It can give you an alternative draft to review, but changes may affect meaning, tone, or citations. Compare the output with the original and check important claims before using it.

A rewrite does not guarantee a particular detector result or make a document compliant with a school, employer, or publisher's policy. The applicable requirements still matter. For a practical review process, use our fact-checking guide.

What AI Detect does not establish

An AI score does not establish plagiarism, factual accuracy, bias-free performance, or a result in Turnitin or another service. Different detectors can disagree, and both false positives and false negatives are possible. AI Detect is independent of those other providers.

Earlier product demonstrations on this site used individual screenshots. Those examples should not be read as a current comparative benchmark or a universal accuracy claim. Our detector reliability guide explains what a stronger evaluation requires.

Choose a useful next step

For an editorial review, inspect sources and unsupported claims. For an authorship question, consider drafts, context, and the writer's explanation. For a writing task, review the final wording yourself. Start with the free allowance if it fits, and compare normal renewal prices and included features before choosing a paid plan.