What is an AI Essay Checker?
GPTinf AI Essay Checker is an AI detection tool that scans written text to identify whether it was generated by AI models such as ChatGPT, Gemini, Claude, or similar tools. Users paste an essay, paper, or draft into the checker, and the tool returns a score showing the likelihood that the content is AI-generated. It is designed to help writers, students, and educators verify the human originality of a piece of writing before it is reviewed or submitted.
Why choose our free AI Checker?
Finding a trusted AI checker for ChatGPT can be hard when so many tools give mixed results. GPTinf's free essay and paper checker is designed to work across different models and deliver clear feedback.
Designed for students, educators, and professionals who need a trustworthy AI detector to confirm originality and keep their writing human.
What makes it stand out:
- A reliable AI detector tuned to reduce false positives and keep your work human.
- Detects AI-generated text - from tools like ChatGPT, Gemini & others - in seconds with no limits on free usage.
- Designed to help you verify the originality of your work before submitting.
As AI becomes part of everyday writing, we focus on tools that help keep text clear, natural, and easy to understand.
Key features of the AI Essay Checker
Accurate and fast AI essay checking
The checker is trained on output from models like ChatGPT, Claude, and others to separate human writing from machine-generated text.
- Detects fully AI-generated essays and partially modified AI text
- Identifies GenAI use across essays, papers, and assignments
- Distinguishes genuine human writing from model output
Free and unlimited – no caps, no hidden fees
No registration, login, or installation required. Paste any draft – a paper, homework, or thesis – and the tool runs the check immediately.
- Free to use without signing up
- No scan limits or daily caps
- Core features available to all users with no paywalls
AI score and cross-checking with top detectors
Each scan returns an immediate report showing whether the text reads as human-written or AI-generated.
- Displays a 0–100% AI likelihood score
- Higher scores indicate stronger AI patterns in the writing
- Shows whether the text would pass checks on leading AI content detectors
Always updated for the latest AI tools and models
The detector is updated regularly to keep pace with new AI models and shifting AI writing patterns.
- Tracks and detects text from newly released models
- Updates reduce false flags on human-written content
- Consistent accuracy maintained as AI writing patterns evolve
How to Use the Free AI Essay Checker
Step 1: Add your essay
Paste your assignment, essay, or any other writing into the input field. The text must be at least 30 words for the scan to run.
- No account needed – paste, check, and get your report
- Free and unlimited with no hidden fees, caps, or daily limits
- Built to reduce false positives on human-written content
Step 2: Start the scan
Click the "Check for AI" button at the bottom of the tool. The system reviews your text in seconds and delivers instant feedback.
- Works with essays, homework, and other content types
- Compares your text against known AI datasets to identify AI patterns
- Returns a clear result showing whether the text is AI-generated or human-written
Step 3: Get your report
See the likelihood of AI use and review how your text scores across multiple detection systems.
- Results are cross-checked against Turnitin, Copyleaks, GPTZero, and other leading detectors
- Identifies content from ChatGPT (GPT-3, GPT-4, GPT-5), Claude, and other GenAI models
- Flagged sections can be rewritten using a ChatGPT Rewriter or GPTinf's Humanizer, which uses non-AI algorithms to rephrase AI-detected tex
Final thoughts
GPTinf AI Essay Checker gives students, educators, and writers a straightforward way to check whether a piece of writing contains AI-generated patterns before it is submitted or published. It runs without registration, returns results in seconds, and cross-checks findings against multiple detection systems to keep scores consistent. For anyone who regularly works with AI-assisted drafts or needs to verify the originality of written work, it covers the full process – from detection to revision – in one place.