Detect ChatGPT, Claude & Gemini in seconds — Free
Paste text below to see AI-written sentences, model signals, and confidence scores instantly.
See AI Detection in Action
Experience our advanced AI detection technology analyzing text in real-time
Text Input
Or try with sample text:
See how Plagly flags AI while aiming to clear genuine human writing.
Analysis Results
Ready to Analyze
Click "Start Analysis" to begin
We flag statistical AI-watermark patterns
During analysis, Plagly surfaces the low-entropy statistical signature that token-level watermarks (Claude's August 2026 mark, Google SynthID) amplify — an honest indicator, not vendor verification. You can also strip or rewrite watermarked text with our dedicated tool.
Open the AI Watermark Detector & RemoverUnderstanding AI Detection
An AI detector is a sophisticated software system designed to identify whether content was generated by artificial intelligence models rather than humans. With the rapid rise of advanced language models like ChatGPT, GPT-4, Gemini, Claude, and LLaMa, distinguishing between human-authored and AI-generated content has become critical.
These tools analyze linguistic patterns, statistical markers, and structural elements that are unique to machine-generated content, providing essential verification in education, publishing, business, and online media.
Advanced AI Detection
Our technology uses multiple neural networks and statistical models to achieve industry-leading accuracy in identifying AI-generated content.
How Does AI Detection Work?
AI detectors use advanced techniques to analyze content and identify machine-generated patterns

Revolutionary AI Detection Technology
Probability Analysis: Analyzes word choice predictability and sequence patterns
AI models often produce highly probable word sequences that follow predictable patterns, making them detectable through statistical analysis.
Semantic Consistency: Identifies unusual sentence structures and over-optimized phrasing
Machine-generated text often lacks the natural inconsistencies and imperfections found in human writing.
Graph-Based Models: Maps relationships between words and sentences
Advanced algorithms analyze the connections and flow between ideas to detect machine-like patterns.
Cross-Model Training: Trained to recognize outputs from multiple AI systems
Our detector is specifically trained on outputs from ChatGPT, GPT-4, Claude, Gemini, LLaMa, and other popular AI models.
Why is AI Detection Important?
AI detectors play a crucial role across multiple industries and use cases
Academic Integrity
Prevent misuse of AI tools in assignments and research
- Maintain educational standards
- Ensure fair assessment
- Preserve learning outcomes
Publishing & Journalism
Verify originality and authenticity of articles
- Maintain editorial standards
- Ensure content authenticity
- Build reader trust
Business & Marketing
Ensure transparency in content creation
- Brand authenticity
- Content quality control
- Regulatory compliance
Research & Analysis
Study writing patterns and AI influence on communication
- Academic research
- Content analysis
- Trend identification
Key Features of Modern AI Detectors
Advanced capabilities that make AI detection reliable and effective
Detection Accuracy
False Positive Rate
AI Models Supported
Analysis Speed
Report Detail
Integration Options
AI Detectors vs Plagiarism Checkers
Understanding the difference between AI detection and plagiarism checking
Plagiarism Checkers
- • Compare against existing sources
- • Detect copied content
- • Find matching passages
- • Identify source attribution
AI Detectors
- • Identify machine-generated content
- • Detect original AI writing
- • Analyze writing patterns
- • Preserve authenticity
Combined Solution
When used together, AI detectors and plagiarism checkers provide comprehensive content verification, ensuring both originality and authenticity in the digital age.
Detect Content From Any AI Model
Plagly.ai is tuned for today’s leading models. Pick a detector built for the AI you want to catch.
Everything you need to know about detecting AI-generated content with Plagly.ai.
Yes. You can detect AI-generated text for free, with no signup required to try it. Paste your text and get instant sentence-level results. Free accounts include a generous monthly word allowance, and paid plans add higher limits, bulk checks, and API access — starting at $4.99 for your first month, then $9.99/mo.
The Future of Content Authenticity
An AI detector is more than just a tool — it's a safeguard for authenticity, trust, and originality in the digital age. As AI models evolve, detectors continue to advance using deep learning, graph models, and collaborative research to ensure accurate and reliable results.
Industry Leading
Most accurate AI detection technology available
Trusted Globally
Used by millions across education and business
Continuously Improving
Regular updates to detect latest AI models