Free AI Content Detector
Check if text is AI-generated. Paste any content to get an instant probability score for ChatGPT, Claude, and Gemini content.
AI Detector
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Frequently Asked Questions
AI Probability Scoring
Get a precise 0–100% probability score indicating how likely a text was generated by AI. See confidence levels alongside the final verdict.
Multiple Model Detection
Detect content from ChatGPT, Claude, Gemini, and other major language models. Each model has distinct writing signatures that the detector identifies.
Batch Analysis
Paste multiple paragraphs or upload documents for bulk detection. Analyze an entire article section by section to find AI-generated passages.
Confidence Indicators
Every result includes a confidence level so you know how reliable the detection is. High-confidence results are near-certain; low-confidence ones need manual review.
How AI Detection Works
AI content detectors analyze text for statistical patterns that distinguish machine-generated writing from human writing. Language models tend to produce text with predictable token distributions, uniform sentence structures, and low perplexity scores. Detectors measure these signals and calculate a probability that the text was AI-generated.
Accuracy Limitations
No AI detector is 100% accurate. False positives occur when human writing happens to be formulaic or technical \u2014 styles that mimic AI patterns. False negatives happen when AI content is heavily edited or when prompts specifically ask for varied, creative writing. Treat detection results as one input, not a final verdict.
Why It Matters for SEO
Google\u2019s helpful content system prioritizes original, experience-driven content. While AI content is not inherently penalized, large volumes of low-quality AI text can dilute your site\u2019s expertise signals. Running content through a detector before publishing helps ensure your pages meet quality thresholds and maintain search visibility. If you need to generate human-quality drafts first, the AI content engine is a good starting point.
Understanding False Positives
Academic writing, legal documents, technical manuals, and content written by non-native English speakers often triggers false positives. These styles use formal structures and standardized phrasing that resemble AI output. If your content is flagged, use the content editor to refine it while preserving your voice.
Tips for Accurate Detection
Test meaningful chunks
Short fragments produce unreliable results. Test at least 100 words for accurate detection.
Check section by section
Run each paragraph separately to pinpoint which sections are AI-generated vs human-written.
Use multiple detectors
Different tools use different models. Cross-reference results from two or more detectors for confidence.
Consider the context
Technical or formal content may trigger false positives. Factor in the writing style and audience.
Verify high-stakes content
For published articles or client work, always verify AI detection results with manual review.
Track detection over time
AI models evolve and detection tools update. Re-test older content periodically and check your SEO score to monitor quality trends.
Frequently Asked Questions
How accurate is AI detection?
Detection accuracy varies by tool. GPTZero and Originality.ai achieve 85-95% accuracy on clear-cut cases. Ambiguous text (edited AI content, non-native English) can produce false positives or negatives.
Can AI content be detected after editing?
Yes, if only minor changes are made. Heavy editing (30%+ rewriting, adding personal anecdotes, varying sentence structure) significantly reduces detection rates.
What is a false positive?
A false positive is when human-written text is incorrectly flagged as AI-generated. This commonly happens with formal, technical, or formulaic writing styles.
Should I use AI content for SEO?
Google states AI content is acceptable if it provides value and is not manipulative. The safest approach is to use AI as a starting point and heavily edit to add expertise, experience, and unique insights.
Check Your Content Now
Paste any text above to get an instant AI probability score. Know exactly whether your content reads like it was written by a human or a machine.
Detect AI Content