HomeAI Detector › For Teachers

AI Detector for K-12 teachers, built around the conversation, not the verdict.

For the middle and high school classroom: scan a class set of essays, get sentence-level evidence you can talk through with a student in plain language, and a clean PDF report for a parent meeting or a note to your department head. Calibrated so young writers and ESL students are not over-flagged for writing simply. FERPA-aware, GDPR-aware, and student text is never used to train the classifier. Free to try. No card.

Start free, no card See pricing
FERPA-aware Sentence-level highlights
Who it is for

Built for the K-12 classroom.

For middle and high school teachers grading mixed-ability classes under time pressure, where the writing is shorter, the writers are younger, and a flag may end up in front of a parent or a principal rather than an integrity panel.

You are not trying to catch every AI essay. You are trying to spend less time wondering and more time teaching, and to handle the rare real case fairly when it lands. TextSight is built around that priority: a short scan, clear evidence a 14-year-old can follow, an easy export, and a tone that respects how young writers actually develop.

Middle school teachers

Paragraph responses, short narratives, first research assignments. Writers this age are still finding a voice, so the goal is rarely a formal case. The free tier covers a casual sanity-check on a single paper, and the sentence highlights give you something specific to ask about in a quiet check-in rather than a confrontation.

High school English and humanities teachers

Five-paragraph essays, in-class writing, take-home assignments across several sections a day. Pro at $19.99 a month (or $14.99 a month on yearly) covers the steady weekly load and adds the 90-day history that matters when a grade gets contested two weeks later or a parent asks to see the evidence.

Grade-level teams and school departments

When a grade level or a department wants consistent handling across classrooms, the Business tier shares scan history across a workspace and produces the same clean one-page PDF every teacher can hand to an administrator. That consistency matters more in a school than in a research department, because the audience for the report is usually a parent or a principal, not a hearing board.

Fits your grading week

A scan that finishes before grading does.

Whether or not your school runs Turnitin, TextSight is the same-class scan you run while you grade, so you have sentence-level context in hand rather than a vague feeling that something is off. It is a working tool, not a replacement for any official school check.

Before grading begins

Bulk-upload the class set of PDF or DOCX submissions. TextSight returns a class dashboard in a few minutes with an Authenticity Score per essay, so the one or two that need a closer read rise to the top instead of getting lost in the stack. Pro and above.

During grading

You see the Authenticity Score next to the student name. A high score means grade normally. A middling score means glance at the sentence highlights and factor them into your read of a student you already know. A low score means open the full report and slow down before you write anything in the gradebook.

After grading

One-click PDF export per scan when you need a record. The PDF carries the student text, the score, the sentence flags, the timestamp, and the classifier version. That is the format an administrator or a parent can actually follow, rather than a screenshot of a percentage.

Compared with reading every essay cold, quietly suspecting AI in a few, and raising it with no evidence to point to, the scan-then-grade pattern gives you something specific to talk about and spares everyone the worst version of the conversation.

Plans & pricing

Pricing for teachers and departments.

Department licensing through Business. Full details on the pricing page.

Free
$0/forever

 

Sanity-check a flagged paper. No card, no email.
  • 3 scans / day
  • 5,000 chars per scan
  • Sentence-level highlights
  • Authenticity Score
Start free
Starter
$7.49/month

Billed $89.88/year — Save $30

For a teacher checking one class a week.
  • 20 scans / day
  • 20,000 AI rewriter words/mo
  • Chrome extension
  • Email support
Get Starter
Business
$29.99/month

Billed $359.88/year — Save $120

For departments and writing programs.
  • 100,000 AI rewriter words/mo
  • 5 team seats, shared history
  • Audit log, REST API
  • White-label PDFs
Get Business

Yearly billing saves 25%. Department and school licensing available on Business. View full pricing →

What you see in a scan

Sentence-level evidence, not a single suspicious number.

A percentage by itself is not a basis for a conversation. The TextSight result panel shows where the classifier reacted and why, so you can read the evidence the same way the student can.

Sentence highlights

Every sentence is colour-coded by its individual AI-likeness score. Red sentences clustered in one paragraph are a stronger AI signal than scattered yellows. Scattered yellows in otherwise structured prose often mean the student writes formally and is not using AI. You read the pattern, not just the headline.

Paragraph cards

Each paragraph is rolled up into a card showing its own score and the dominant signal driving it. Useful when you want to ask the student about a specific section without scrolling through highlights.

Perplexity and burstiness signals

The underlying signals the classifier weighs are surfaced read-only on Pro. Low perplexity plus low burstiness across the whole essay is the classic AI fingerprint. Mixed perplexity with normal burstiness is the human pattern. These are diagnostic context, not verdicts.

Authenticity Score and Plagiarism Risk

Two scores side by side. Authenticity Score is the inverse-AI reading. Plagiarism Risk is a separate signal that catches copied passages. A clean essay scores high on authenticity and low on plagiarism risk. The two together give a fuller picture than either one alone.

Fits with the tools you already use

Integrations with your existing classroom stack.

Native LMS plugins are not shipped yet. Here is the honest 2026 picture of what works today and what is coming.

Today: export and upload

Export student submissions as PDF or DOCX from Canvas, Blackboard, Brightspace, Google Classroom, Schoology, or Microsoft Teams. Drag the folder into TextSight bulk upload. Get the class dashboard back in a few minutes. Copy scores back into your gradebook, or save the PDF report for your records.

Today: paste-in workflow

For single essays, paste the text into app.textsight.ai. The free tier covers casual one-off scans up to 5,000 characters. Pro extends per-scan length and unlocks bulk upload.

Today: Chrome extension

One-click scan from any web page including hosted submission viewers. Useful when you are reading inline rather than downloading. Available on Starter and above.

Roadmap: native plugins

Canvas, Google Classroom, Blackboard, Brightspace, Schoology, and Microsoft Teams plugins are on the roadmap. We are not promising dates while the integration partners change their plugin requirements; we will not ship a thin wrapper that breaks every term.

Student data protection

Privacy-first by default, FERPA-aware and GDPR-aware.

Student submissions are protected by FERPA in the US, by GDPR in the EU and the UK, and by local equivalents elsewhere. TextSight is designed to honour those rules out of the box.

No training on student work

Student text submitted for scanning is never used to train the classifier or any other model. This is a contract clause, not a setting you have to find.

Deletion on request

Any scan can be deleted from history. On Pro you can delete individual records. On Business, deletion can be applied across a workspace by an admin in a single action.

Standard DPA for institutions

Business and Enterprise tiers ship with a standard Data Processing Agreement. Larger institutions with custom DPA needs are handled via the contact form, usually inside a week.

Honest scope on residency

Hosting is on Hetzner in Germany for ML inference and on DigitalOcean for the API. EU institutions get EU residency by default. For US institutions that require US-only residency under FERPA, the Enterprise tier is where that is contractually scoped.

Calibration tool, not verdict

A detector is a conversation starter.

Treating any single number as proof a student used AI is unfair and unreliable. The 2026 expectation is that teachers use detection as one input among several, and the design here is built around that expectation.

Use the score as a signal, not a sentence

A low Authenticity Score means the essay reads more AI-like to the classifier. It does not mean the student used AI. False positives are real, particularly for ESL writers and for younger students who write in short, even sentences before their voice fully develops. Your knowledge of the student is the final layer, not the classifier.

Do not auto-fail a child on a score

Failing a student or marking a permanent record on a single detector percentage produces bad outcomes, and it is hard to defend to a parent or a principal. The fair path is conversation first, evidence second, decision third, with the scan as supporting context throughout and a young writer always given the benefit of the doubt.

Conversation starters, not accusations

The sentence-level highlights are the lever. Ask the student to walk you through how they wrote a specific flagged paragraph, or to show an earlier draft from their notebook or shared doc. The flags give the student something concrete to respond to, which is far kinder to a 13 or 16-year-old than a vague accusation built on a number.

Assignment design beats the detector arms race

Rewritten AI text is hard for any detector to catch reliably. The durable defences are the ones you already control in a classroom: in-class drafting, multi-stage assignments with check-ins, and prompts that ask for personal experience or something specific to your lessons. The detector is one signal in that mix, not the whole answer.

FAQ

Teachers frequently ask.

Is an AI detector fair to use on a middle or high school student?
Only if you treat it as a starting point for a conversation, never as proof. Young writers are still building their voice, and a developing student who writes in short, even sentences can read AI-like to a classifier for reasons that have nothing to do with cheating. TextSight is built around that reality: the sentence-level highlights give you something specific to ask about, and the design encourages you to talk with the student before you draw any conclusion.
How do I raise AI suspicion with a student and their parents?
Use the sentence-level highlights as conversation starters, not verdicts. Ask the student to walk you through how they wrote a specific flagged paragraph, and where a parent meeting is involved, show the highlighted passages rather than a single percentage. The report makes the discussion concrete and age-appropriate, and it gives the student and family a fair chance to explain, share earlier drafts, or talk through what happened.
What about false positives for ESL or younger writers?
False positives on non-native English writing are real and well-documented, and the same caution applies to younger students who write in simple, even sentences. Before treating any flag as evidence, consider whether the student is an ESL writer, whether the assignment uses standard phrasing that overlaps with AI defaults, and whether the flagged sentences cluster or scatter. Scattered flags in otherwise structured prose often reflect a developing writer, not actual AI.
Is there school or district licensing?
For department-wide or school-wide use the Business plan at $39.99 a month includes 5 seats with bulk upload, shared history, and an audit log. Larger district contracts are quoted via the contact form. Individual teachers usually start on the free tier or Pro and move to Business when a grade level or department wants shared records.
Does TextSight integrate with Google Classroom, Canvas, or Schoology?
Native LMS plugins are not shipped yet. The honest workflow today is to bulk-upload PDF or DOCX exports from your LMS into TextSight, get the class dashboard back in a few minutes, and copy results back into your gradebook or save the PDF report. Google Classroom, Canvas, Schoology, Microsoft Teams, Blackboard, and Brightspace integrations are on the roadmap.
Can a TextSight report support a conversation with an administrator?
Yes. Each scan stores the input text, the Authenticity Score, the sentence-level flags, the date and time, and the classifier version used, and Pro adds 90-day history with one-click PDF export. When a case goes to a department head or principal, the report is a tidy supporting record alongside your conversation with the student and any earlier drafts, not a verdict on its own.
Will TextSight train on student work?
No. Student text submitted for scanning is never used to train the classifier or any other model. Data retention is bound to the user's history settings, deletion on request is supported, and a standard DPA is available on Business and Enterprise tiers.
What should I do with a borderline score?
Look at the highlighted sentences, not the percentage. A cluster of red sentences in one section can mean a student leaned on AI for that part. Scattered flags through otherwise structured prose usually mean a young or formal writer, not actual AI. Borderline scores are exactly where your knowledge of the student matters most, and the tool is built to support that judgment rather than replace it.
Related

More for teachers and schools.

Scan a class. Talk to a student. Move on.

Free to try. No card.

Start free, no card See pricing
FERPA-aware · GDPR-aware · Sentence-level evidence · 90-day audit history on Pro

AI detection for other roles

How TextSight fits other teams and workflows.

AI Detector for University Students AI Detector for Thesis Writers AI Detector for Universities AI Detector for Microsoft Word — Scan Your .docx AI Detector for YouTube Creators AI Detector for Agency Owners