The signal in
a world of synthetic
content
Benchmarks, standards, and research on AI content detection — from perplexity scoring to C2PA provenance. Built for researchers, publishers, and policy teams.
AI Detection Tools Compared
Updated March 2026 · 2,400 samples · human-written and AI-generated text across 5 content categories.
| Tool | Accuracy | False Positive | Latency | Type |
|---|---|---|---|---|
| Originality.aioriginality.ai | 7% | 420ms | text | |
| GPTZerogptzero.me | 10% | 380ms | text | |
| Writer.comwriter.com | 8% | 290ms | text | |
| Copyleakscopyleaks.com | 12% | 510ms | text |
The protocols shaping content provenance
From cryptographic signing to spectral watermarking — the technical standards defining how authentic content is identified.
C2PA — Content Credentials
The Coalition for Content Provenance and Authenticity defines how metadata is cryptographically bound to media files. Adopted by Adobe, Microsoft, Google, BBC, and the New York Times.
AI Watermarking (NIST)
NIST AI 100-4 defines voluntary guidelines for watermarking AI-generated content. Mandated for government AI use under the 2023 Executive Order.
EU AI Act — Article 50
Transparency obligations for AI-generated text and deepfakes. Generative AI providers must label synthetic content and disclose training data summaries.
Key terms
The vocabulary of AI content detection — from statistical signals to provenance protocols.
Join the discussion
Researchers, publishers, and practitioners discussing AI detection methodology, tool comparisons, bypass techniques, and policy developments. No vendor affiliation required.
Original studies
AI Humanizer Bypass Rates: 2025 Annual Survey
14 AI humanizer tools tested against 6 major detectors using 4,200 standardized samples. Bypass rates ranged 23–91% depending on tool pairing.
Domain-Specific False Positive Rates in AI Detection
STEM writing has naturally lower perplexity. Detectors calibrated on general corpora produce false positive rates as high as 34% on technical content.
C2PA Adoption Across Major Platforms: 2025 Audit
Audit of C2PA Content Credentials implementation across 12 major platforms. Adoption is fragmented — only 4 of 12 implement full manifest verification at display time.