For Education

AI Checker for Teachers

Check a student essay for AI-generated writing in under two seconds. You get a sentence-by-sentence breakdown of which parts look AI-written, a confidence score calibrated to mean what it says, and a published account of where the checker is weak. Free to use, no account required.

Why Teachers Use This AI Checker

Most AI checkers give you a number and no way to argue with it. This one shows its work, and tells you where it falls short.

It Says When It Doesn't Know

Every result is one of four verdicts, and 'uncertain' is one of them. When the signal is weak, the checker says so instead of guessing a number that sounds authoritative.

Sentence-by-Sentence, Not One Score

Students rarely use AI for a whole essay. Each sentence gets scored on its own, so you can see the three AI-written paragraphs in an otherwise original piece.

Different Job to a Plagiarism Checker

Plagiarism tools match text against sources that already exist. AI writing is original by that standard, which is why it passes them. Run both; they catch different things.

We Publish What It Gets Wrong

Heavily rewritten AI is the case we handle worst, and the checker is English-only. Both are written up on our technology page rather than buried, so you know when to trust it.

Class-Wide Review

Reviewing a whole class at once is available as a custom integration. We build it around the tools your school already uses, so submissions reach you without extra steps.

A Score a Student Can Question

A flagged student can see exactly which sentences were flagged and how confident the checker was on each. That is a conversation you can have, not a verdict handed down.

How the AI Checker Works for Teachers

A straightforward workflow designed to fit into your existing grading process.

1

Submit Student Work

Paste text directly into the analyzer or use the API to integrate with your learning management system. Works with essays, reports, and short-form assignments.

2

Get Detailed Analysis

Our ensemble of detection models analyzes the text at the sentence level. Each sentence receives an individual assessment, giving you a granular view of the submission.

3

Review the Report

See an overall verdict alongside a sentence-by-sentence breakdown. Understand which parts of the text triggered detection and why.

4

Start a Conversation

Use the results as a starting point for discussion with students. AI detection should inform, not replace, your professional judgment as an educator.

The Numbers Behind It

What we measured, how we measured it, and what it cost you to find out.

99.2%

Accuracy

Measured in our own testing across thousands of human and AI-written texts. Not a third-party figure.

<2s

Per essay

Typical time to a full result, including the sentence-by-sentence breakdown.

4

Verdicts, not a percentage

Likely AI, possibly AI, uncertain, or likely human. The middle two exist so the checker can admit doubt.

$0

To try it

No account, no card, no trial period. Paste an essay and read the result.

Where an AI Checker Fits in Your Teaching

A checker catches AI writing after the fact. These are the things that reduce how often you need it.

Formative Assessment

Use detection results during drafting stages to teach students about AI-assisted writing and help them develop their own voice.

Curriculum Design

Design assignments that are harder to complete with AI alone, such as reflective writing, personal narratives, and in-class compositions.

Department-Wide Policies

Establish consistent detection practices across your department. We can build a custom integration for department-wide rollout so everyone works from the same setup.

Frequently Asked Questions

99.2% in our own testing, measured across thousands of human and AI-written texts. That is our internal figure, not a third-party audit, and accuracy drops on the hard cases we list on our technology page. Several models check the text independently, and where they disagree the checker returns 'uncertain' rather than committing to a number.

Yes. Our sentence-level analysis identifies which portions of a text may be AI-generated and which appear to be human-written. This is especially useful for cases where students used AI for brainstorming or drafting but wrote the final version themselves.

This is the failure mode worth knowing about. AI checkers have historically over-flagged writing by non-native English speakers, because plain, carefully-constructed prose looks statistically similar to AI output. We have worked to reduce that, but we have not eliminated it. Treat a flag on an ESL student's work as a reason to ask about their process, never as proof.

Partly. Swapped characters, deliberate typos and odd spacing have almost no effect on the score. Heavy rewriting is a different story: if a student takes AI output and genuinely rewrites it in their own words, we miss a meaningful share of those. It is the hardest problem in AI detection and nobody has solved it cleanly.

We recommend using detection results as a conversation starter, not as sole evidence. Our detailed reports show exactly which sentences were flagged and why, which can help facilitate a productive discussion. Students should always have an opportunity to explain their writing process.

Yes. Submitted text is processed for analysis only and is not stored permanently or used to train our models. We take student privacy seriously and comply with standard data protection practices.

Yes. Canvas, Moodle and Blackboard all expose their own APIs, and ours adapts to them, so detection can run as part of your existing submission flow. Get in touch and we will work out what fits your setup.

Turnitin bundles AI detection into a plagiarism suite your institution licenses centrally, and gives you a single percentage. We do one job, show a score per sentence, publish where the checker fails, and cost nothing to try. If your school already pays for Turnitin, run both. Disagreement between them is itself a signal worth looking at.

The minimum is 50 characters, but short work is where the checker is weakest. A discussion post or a one-paragraph answer rarely gives it enough to work with, and it will tell you when the signal is too thin rather than guessing.

Yes. Everything is free to try, so you can analyze text directly on our website with no account and no payment details. If you need class-wide batch review or API access, we build those as custom integrations around your school's setup. Get in touch and we will scope it with you.

Check a Student Essay Right Now

Paste an essay and read the result in under two seconds: a verdict, a confidence score, and the specific sentences that triggered it. Nothing to install and no account to create.

Free to try. No account, no card.