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AI detectors show mixed results in Authors Guild test

A recent test by the Authors Guild revealed significant inconsistencies in AI detection tools. While some detectors like Pangram and Grammarly accurately identified human-written texts, others such as Sidekicker and ZeroGPT incorrectly flagged human content as AI-generated. The Guild also noted that sophisticated human writing can resemble AI output due to the nature of training data. AI

IMPACT Inconsistent AI detection tools pose challenges for content creators and platforms relying on accurate identification of AI-generated text.

RANK_REASON The cluster discusses the performance of AI detection tools, which are products used to identify AI-generated content.

Read on The Decoder →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

AI detectors show mixed results in Authors Guild test

How we ranked this

Signal score
0 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Tool
The cluster discusses the performance of AI detection tools, which are products used to identify AI-generated content.
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, other
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
93 days old
Aged out of breaking-news scoring windows; ranking reflects the durable signal from the full source set.

Full methodology in our editorial standards.

COVERAGE [1]

  1. The Decoder TIER_1 English(EN) · Matthias Bastian ·

    Authors Guild test finds some AI detectors perfectly identify human writing while others fail on every single text

    <p><img alt="" class="attachment-full size-full wp-post-image" height="768" src="https://the-decoder.com/wp-content/uploads/2026/06/ai_text_detection.png" style="height: auto; margin-bottom: 10px;" width="1376" /></p> <p> The Authors Guild tested five AI detectors on human-writte…