AI Text Detector
Instantly detect if text is written by ChatGPT, GPT-4, Claude, or other AI. Free AI checker with sentence-level analysis.
Analyzing text for AI content...
Running AI detection model
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How Our AI Detector Works
Paste Your Text
Copy and paste any text you want to check for AI content. Works with essays, articles, emails, and more.
AI Analysis
Our DeBERTa-v3 model analyzes linguistic patterns to detect ChatGPT, GPT-4, Claude, and other AI writing.
Get Results
Receive an AI probability score with sentence-level highlighting showing which parts are likely AI-generated.
Get AI Text Detector for Chrome
Right-click any text on the web to instantly check for AI content. Free forever.
- Right-click to analyze any text
- Works on any website
- Sentence-level AI detection
- 100% free, no account needed
Frequently Asked Questions
How does the AI text detector work?
Our AI detector uses a fine-tuned DeBERTa-v3-large model, trained on millions of AI-generated and human-written texts. It analyzes writing patterns, sentence structure, vocabulary usage, and linguistic features to determine the probability that content was created by AI models like ChatGPT, GPT-4, Claude, or others.
Is this AI checker free to use?
Yes! Our AI text detector is completely free to use. There's no registration required, no limits on usage, and no hidden fees. Both the web tool and Chrome extension are free forever.
How accurate is the ChatGPT detector?
Our AI detection model is based on the desklib/ai-text-detector architecture, which achieves high accuracy on the RAID benchmark. It can detect content from ChatGPT (GPT-3.5, GPT-4), Claude, Gemini, and other major AI models with sentence-level precision.
What's the minimum text length for AI detection?
For accurate results, we recommend at least 250 characters. For best accuracy, use 1000+ characters. The maximum supported length is 25,000 characters per analysis.
Can I detect AI in essays and academic work?
Yes, our AI detector works great for checking essays, research papers, homework assignments, and academic writing. It can identify AI-generated content and highlight specific sentences that appear to be written by AI.
Does the Chrome extension work on all websites?
The AI Text Detector Chrome extension works on most websites. Simply select any text, right-click, and choose "Detect AI text" from the context menu. The analysis opens in a convenient side panel.