What Is an AI Generated Text Checker?
An AI generated text checker analyzes writing to determine whether it was produced by an AI model — such as ChatGPT, Claude, Gemini, or LLaMA — rather than written by a human.
Unlike basic plagiarism checkers, AI text checkers look for statistical patterns unique to language models: uniform sentence rhythm, overuse of transition words, predictable vocabulary choices, and low perplexity scores.
How Our Checker Works
Our detector analyzes text at the word level, not just the paragraph level. Every word receives an AI-probability score. The result is a heatmap — red and orange words indicate high AI likelihood, green words look human.
This means you don’t just get a number like “87% AI.” You see exactly which sentences triggered the result, so you can fix them.
Supported AI Models
| AI Model | Detection Support |
|---|---|
| ChatGPT (GPT-3.5, GPT-4, GPT-4o) | ✅ Full support |
| Claude (2, 3, 3.5) | ✅ Full support |
| Gemini (1.0, 1.5, 2.0) | ✅ Full support |
| DeepSeek | ✅ Full support |
| LLaMA (2, 3) | ✅ Full support |
| Mistral | ✅ Full support |
| GPT-4o mini | ✅ Full support |
Who Uses an AI Text Checker?
- Students checking their work before submission
- Teachers reviewing assignments for AI use
- Editors and publishers verifying content originality
- SEO professionals ensuring content quality at scale
- Hiring managers screening AI-written job applications
- Bloggers and copywriters confirming content passes client checks
How to Check Text for AI Generation
- Go to the free AI detector tool
- Paste your text — no character limit
- Click “Analyze”
- Review the word-level heatmap
- Use rewrite suggestions to fix flagged sentences
No sign-up. No payment. No text storage.
Accuracy and Limitations
Our checker reaches 90-95% accuracy on unedited AI text. Accuracy drops when:
- Text has been heavily edited after AI generation
- Very short inputs (under 100 words)
- Mixed human-AI writing where AI contributed less than 30%
For heavily rewritten content, the word-level heatmap still identifies residual AI patterns that a percentage score would miss.
FAQ
Is this AI text checker free?
Yes — completely free, no usage limits, no account required.
Does it work on all AI models?
Yes. It covers all major AI writing tools including ChatGPT, Claude, Gemini, DeepSeek, and LLaMA.
Will it store my text?
No. Text is processed and immediately discarded. Nothing is stored or used for training.
What’s the difference between this and plagiarism checkers?
Plagiarism checkers look for copied text. AI checkers look for AI writing patterns. They solve different problems.
See Also
- Detect ChatGPT Text Specifically
- Word-Level Heatmap Explained
- How to Rewrite AI-Flagged Sentences
- Best AI Detector for Students
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