AI Content Detector
Paste any text to get an AI probability score, detected signals, and flagged phrases. Powered by Gemini. 100% free.
0 words
Why AI Content Detector Matters
Content authenticity is increasingly scrutinised by both readers and editorial teams. Understanding where your text shows AI signals allows you to make targeted edits before publishing — preserving credibility, trust, and search performance.
Phrase-Level Detection
The tool highlights specific flagged phrases, not just an overall score — so you know exactly what to edit.
Instant Results
No signup needed. Paste your text and get an AI probability score with signal breakdown in seconds, powered by Gemini.
- Publishers and editors increasingly use AI detectors before accepting contributed content.
- High AI scores can reduce trust signals for YMYL (Your Money, Your Life) topics.
- Knowing which phrases are flagged helps you prioritise edits for maximum impact.
How to use AI Content Detector
Paste Your Content
Enter at least 30 words — the more content you provide, the more accurate the detection result.
Analyse
The tool checks for AI-generated patterns including generic transitions, hedging language, and structural repetition.
Review Flagged Phrases
Yellow-highlighted phrases are the specific passages driving the AI probability score up.
Edit & Re-test
Replace flagged sections with specific details, personal perspective, or concrete data, then re-run to verify improvement.
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Content Authenticity Workflow
Run every AI-assisted draft through the detector before publishing to catch and fix the phrases most likely to be flagged by editorial teams or readers.
Recommended implementation sequence
SEO Workflow Map
Draft with AI Assistance
Use AI to generate a first draft or outline — speed up the process, not bypass quality.
Run the Detector
Paste your draft and identify sections with AI probability above 55%.
Rewrite Flagged Phrases
Add specific statistics, first-person insights, and varied sentence structures.
Re-analyse & Publish
Confirm your revised score is under 30% before submitting or publishing.
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Frequently Asked Questions
Everything you need to know about ai content detector.
AI detectors look for patterns common in AI-generated text: repetitive sentence structures, excessive hedging, lack of specific details, generic transitions, and unnatural fluency.
No detector is 100% accurate. They produce probabilistic estimates based on statistical patterns. Human-written content can sometimes score as AI, and edited AI content can score as human.
Google doesn't penalise AI content per se — it penalises low-quality, unhelpful content. Well-edited, accurate AI content that genuinely helps users is treated the same as human writing.
Scores below 25% suggest likely human writing. 25-55% indicates mixed signals. Above 55% means the text exhibits strong AI-generated patterns. The tool also highlights the specific phrases driving the score.
Add personal anecdotes, specific data points, varied sentence rhythm, and concrete examples. Remove generic transition phrases like 'it is worth noting' and 'in conclusion' that detectors flag heavily.
Fonzy generates content with niche-specific data, real statistics, and structured insights that AI detectors associate with human expertise — combined with editorial review for quality.