ChatGPT Detector
Paste any text below for an instant estimate — then create a free account for the full multi-engine analysis that cross-checks stylometric signals with commercial classifiers trained on GPT-4/GPT-5-class output.
Detectors don't "recognize ChatGPT" — they measure statistical patterns typical of language-model output: unusually uniform sentence rhythm, low burstiness, formulaic transitions and stock phrasing. Our engines blend those stylometric signals with machine-learning classifiers trained on millions of human and AI samples.
Unedited ChatGPT output is usually detectable. Heavily edited or paraphrased output is harder — and any tool that claims otherwise is overselling. We show a confidence level with every score so you know how much weight the result can bear.
Unedited ChatGPT output is usually detectable by modern multi-engine tools. Detection gets harder when text is heavily edited, paraphrased or mixed with human writing — reliability drops and confidence levels matter more than raw percentages.
Yes. The commercial engines we blend are continuously retrained on output from the latest OpenAI, Anthropic, Google and open-source models, and our stylometric engine measures patterns that persist across model generations.
Light grammar fixes rarely trigger detectors. Heavy AI rewriting (full-sentence "improve" features) can. If you use assistive tools, keep drafts as evidence of your writing process.
The scanner on this page is free with no sign-up (up to 5,000 characters, 5/day). Free accounts add 300 monthly credits for full multi-engine reports.
Can professors tell if you use ChatGPT? Often yes, through detectors, writing-voice shifts and process evidence. An honest look at how students get caught.
Jul 6, 2026 · 6 min read
How do AI detectors work? A plain-English guide to perplexity, burstiness, classifier models, watermarks and provenance — and where each one breaks.
Jul 6, 2026 · 8 min read
Is ChatGPT detectable? Usually yes — modern detectors catch unedited output reliably, but editing and paraphrasing erode accuracy fast. The 2026 evidence.
Jul 6, 2026 · 6 min read
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