RepDex

AI Detectors, Tested and Explained

Your independent guide to AI detectors — how AI detection works, how accurate the best AI detectors really are, and honest reviews of every major AI content detector, for writers, students, educators, and professionals in 2026.

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What We Cover

Everything about AI detection — for everyone whose writing gets checked by a machine.

AI Detectors

How AI detection actually works, what the scores mean, and where detectors succeed and fail — the core knowledge.

How-To Guides

Step-by-step guides for working with AI-generated text — checking it, cleaning it, and understanding how detectors judge it.

Featured Detectors Article

What Is an AI Detector? How AI Detection Actually Works

AI detectors claim to tell human writing from machine writing. Here's how they actually work under the hood, what their scores really mean, and where they break down.

RDRepDex Editorial Team
··13 min read
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New to AI Detection? Start Here

The four articles that explain the whole field — read these and every detector score you see will make sense.

1

How AI Detection Works

The pillar guide: what detectors measure and what scores mean.

2

Detection Terms Explained

Perplexity, burstiness, and watermarks in plain English.

3

False Positives Explained

Why human writing gets flagged and what to do about it.

4

Check Before You Submit

The practical pre-submission workflow, step by step.

The RepDex Difference

RepDex is an independent publication built on one simple rule: We only publish claims about AI detection we've actually verified.

Tested, Not Assumed

We run real text through real detectors before we write about them — so accuracy claims you read here come from testing, not from marketing pages.

Editorial Integrity

We take zero sponsored placements from detector vendors. Our coverage says what actually works and what doesn't, never what pays us.

For Real Stakes

False positives cost students grades and writers clients. We cover AI detection with the seriousness those stakes deserve, wherever you are in the world.

Latest Articles

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Detectors

TruthScan AI Detector: Text, Image and Voice Claims, Reviewed

TruthScan sells one suite to detect AI text, images, and voice. We separate the three claims, weigh the honest reality per modality, and ask whether one product can credibly cover three arms races at once.

RepDex Editorial Team
·13 min
Detectors

Sightengine AI Image Detector: The Moderation API, Reviewed

Sightengine is a developer-first content-moderation API that folds AI-generated-image detection into a broad classification suite. We look at what it actually is, how the AI signal fits a moderation pipeline, how it compares to Hive, its usage-based pricing model, and who should (and shouldn't) integrate it.

RepDex Editorial Team
·13 min

About RepDex

RepDex is an independent publication focused on AI detection. We explain how AI detectors work, test how accurate they really are, and publish practical guides for anyone whose writing gets checked by a machine — students, writers, editors, and educators. Everything we publish is verified by our editorial team, with no sponsored content and no affiliate bias.

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