Free AI Detector: Check ChatGPT, Gemini & More with AI Checker
Paste any text and run our free, unlimited AI checker for ChatGPT, GPT-4 and Gemini — instant, reliable AI content detection with no sign-up required.
How is GPTinf's AI Content Checker Different?
You get everything the big AI detectors offer, but without paywalls. GPTinf AI checker is open to everyone because a free AI content check should be easy, fast, and available whenever you need it.
We know how important speed and clarity are when you're trying to check content for AI. That's why we built a tool we'd actually use ourselves — simple, quick, and reliable.
What makes it stand out:
- No limits, no locked features
- Clean, easy-to-read insights
- Custom algorithm trained on ChatGPT, Gemini, Claude, etc.
- Cross-checking logic for more consistent results
- Works instantly in your browser – paste and go
As AI becomes part of everyday writing, we focus on tools that help keep text clear, natural, and easy to understand.
GPTinf Free AI Detector
Key Features of AI Detector
99%
Success rate
Our model evaluates text structure, probability markers and writing patterns
Reliable AI Pattern Analysis
1.7 million+
Texts analyzed with our AI Checker
Powered by GPTinf AI Detection Engine
Trusted by professionals, writers and editors looking to understand better how their content is generated
Detect AI Across Multiple Writing Styles
How to use our Free AI Detection Tool?
Drop in any type of content you want the Al checker to scan
For best accuracy, make sure the input is at least 30 words
- No sign-up required
- Enjoy full access with no paywalls
Press the "Check for Al" button at the bottom of the tool
The detector carefully analyses your text and gives feedback
- Get the insights in seconds
- Scan again as many times as you need
A clear 0-100 % indicator shows how human or AI the content appears
Using the insights, rewrite and remove text that appears as AI
- You can use our Paraphraser to polish the text with the selective paraphrase feature
The Only Writing Toolkit You Need
GPTinf combines a Paraphraser, AI Detector, and The Writing Assisstant so you never need to juggle multiple tools again.
Many students use AI paraphrasers, but not all tools effectively transform AI-generated text
AI Detector
Run your text through the AI Detector to see where your writing has AI-like patterns, so you know which parts need a second look
Using a reliable AI paraphraser is essential for avoiding robotic sentence structure and unnatural phrasing in text.
Using a reliable AI paraphraser is essential for avoiding robotic sentence structure and unnatural phrasing in text.
Paraphraser
Clean up AI-heavy passages so they read like something you would actually say. The tool untangles stiff sentences, weird rhythm, and copy-paste vibes
Good writing needs flow. When sentences don't connect naturally, even strong arguments lose impact.
Good writing needs flow. When sentences don't connect naturally, even strong arguments lose impact.
Good writing needs flow. When sentences don't connect naturally, even strong arguments lose impact.
Writing Assistant
The Writing Assistant helps you turn chaos into structure: outlines, sections, and a workable draft you can then tweak, fact-check, and make fully yours
Simplify Your Writing Flow
Bring up your topic and test how all tools work
FAQs - AI Detector Questions Answered
Ethical Use Policy
GPTinf is designed to help you improve your own writing – refining clarity, structure, and quality. It's a tool for learning better writing techniques and enhancing professional communication. Use it to analyze and polish content you've created, not to deceive or circumvent rules.
Prohibited uses include:
- academic dishonesty, cheating or plagiarism
- creating fake documents or credentials
- evading detection systems to deceive institutions
- impersonation, and any unlawful or deceptive activity
You are responsible for how you use GPTinf. Follow your institution's or employer's policies on AI tools and be transparent when required. We may suspend access if our tools are misused. GPTinf refines writing not helps you cheat.