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Multi-Engine AI Detection

AI Essay Checker — Verify Your Essay Before Submission

Submitting an essay and worried about AI detection? Check it yourself first with 3 independent engines.

Verified by 211-Sample Benchmark·94.2% Accuracy · 2.5% FPR · 96.1% TPR·See methodology →

Free scan: GPTZero analyzes your first ~300 characters

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|||.pdf, .docx, .txt
0-30: Likely Human31-70: Uncertain71-100: Likely AI

Your text is never stored. Only a SHA-256 hash for caching.

Why Multi-Engine Detection?

Single AI detectors disagree on 15-30% of texts. OmniDetect combines three independent engines for consensus — dramatically reducing false positives.

3 Independent Engines

GPTZero, Winston AI, and Originality.ai each analyze your text independently.

Consensus-Based Scoring

When all three engines agree, you can trust the result.

Privacy First

Your text is never stored. Only a SHA-256 hash for caching. GDPR compliant.

AI Essay Checker for Students — Before You Submit

Universities worldwide now scan every submission through AI detectors. Getting flagged doesn't just mean a bad grade — it can trigger a formal academic integrity investigation.

OmniDetect lets you check your own essay before your professor does. Paste your text, get sentence-level highlighting of flagged passages, and use the AI Writing Coach to understand why specific sentences look AI-generated. Edit, rescan, and repeat until your essay reads as authentically yours.

The key advantage: we run three independent engines. If only one flags a sentence, it's likely a false positive. If all three agree, you know exactly which parts need revision.

How to Check a Research Paper for AI Content

Academic papers are especially prone to false positives because formal, structured writing shares patterns with AI output. Our benchmark found that all 3 of our false positives (out of 118 human samples) were academic or professional texts.

For research papers, the multi-engine approach is critical: GPTZero has a 0.0% false positive rate in our tests, acting as a "human guardian." If GPTZero says your paper is human-written while another engine disagrees, the consensus algorithm weights this correctly.

Paste your abstract, introduction, or full paper (up to 50,000 characters) for a thorough check. The AI Writing Coach will flag specific academic writing patterns that trigger detectors and suggest alternatives.

Frequently Asked Questions

Will my professor detect AI in my essay?
Many universities now use AI detectors like Turnitin or GPTZero. Check your essay with OmniDetect first — our 3-engine consensus tells you exactly what detection tools will likely find.
How do I check my essay for AI before submitting?
Paste your essay into OmniDetect. You'll get sentence-level highlighting showing which parts look AI-generated, plus an AI Advisor with specific rewriting suggestions. Edit and rescan until you're confident.
Is OmniDetect better than Turnitin for AI detection?
Turnitin uses one AI detection model. OmniDetect uses three independent engines (GPTZero, Winston AI, Originality.ai) and shows you the consensus. Three opinions are more reliable than one.
Can I use AI to help write my essay and still pass detection?
OmniDetect doesn't help you evade detection — we help you understand what detectors see. Our AI Advisor shows flagged sentences and explains why. You decide how to revise with your own voice.
How many words can I check for free?
Free scans cover the first ~300 characters with real GPTZero analysis, 3 times per day. Sign up for 1,000 free Word Tokens to check your full essay with all three engines.

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