0 words / 1,000
ESL-safe mode active. Common-vocabulary penalty disabled, phrase weighting halved, "Likely AI" threshold raised from 75% → 85%. Designed to reduce false positives on writing by non-native English speakers.
Analyzing your text...
Running statistical signal analysis + LLM signature matching against ~140 patterns.
0%
AI Probability
Human Words
AI-pattern Words
Sentences
Characters

Most Likely Source

Top match:
Attribution is based on phrase patterns observed disproportionately in each LLM's output. Heavily edited or paraphrased AI text may not match any signature cleanly.

Sentence-level Analysis

Likely human Possibly AI Strong AI signal

Detection Signals

AI Phrases /1k words
Burstiness Score (AI%)
Sentence Diversity (AI%)
Punctuation Variety (AI%)
Common-word Reliance
Paragraph Uniformity

AI Crutch Phrases Detected

How accurate is this? No AI detector is 100% reliable. This tool combines statistical signals (burstiness, lexical patterns, structural uniformity, model-specific phrase tells) and attributes likely source by matching against curated phrase libraries for ChatGPT, Claude, Gemini, and generic LLM patterns. Use the result as a hint, not a verdict — heavily edited AI text, short samples, or modern LLM output that's evolved past these signatures may be misclassified. If you're a non-native English speaker, enable ESL-safe mode above to reduce false positives.
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