AI Detector
Find out if text was written by AI or a human
Paste text to detect AI content
Free AI Content Detector — Is It AI or Human Written?
WriteGenius's free AI detector analyzes text to determine whether it was written by a human or generated by an AI model such as ChatGPT, Claude, Gemini, or GPT-4. Our AI content detector uses advanced pattern recognition to identify linguistic markers, sentence uniformity, and stylistic patterns characteristic of AI-generated writing.
Whether you're a teacher checking student submissions, an editor verifying article authenticity, or a content manager auditing your team's work, our ChatGPT detector gives you a clear probability score — 0 (human) to 100 (AI) — along with specific reasoning for every result.
Why Use WriteGenius AI Detector?
Instant Detection
Get a clear AI probability score in seconds — no waiting, no setup required.
Detailed Analysis
See specific AI indicators and human writing signals, not just a number — understand why the verdict was reached.
Free to Use
Check up to 500 words for free with no account required. Upgrade for unlimited detection.
Works on Any AI
Detects content from ChatGPT, Claude, Gemini, GPT-4, Llama, Copilot, and other large language models.
Accurate Results
Our model is trained on a wide range of human and AI text to maximize accuracy across many writing styles.
Human vs AI Breakdown
Clear visual score ring and separated indicator lists make it easy to interpret results at a glance.
How to Detect AI-Written Text
Paste the Text
Copy and paste any text you want to check — an email, essay, article, blog post, or any written content.
Click Detect AI
Our AI analyzes sentence patterns, vocabulary distribution, entropy, and stylistic consistency.
Review Your Score
See a 0–100 score, a plain-language verdict, and a full breakdown of AI and human writing signals.