AI Text Detector

Analyze text for AI writing patterns, burstiness, and perplexity indicators.

100% Free · No Sign-up · Runs in Your Browser

AI Probability Assessment
65% — Likely AI-Generated
0
Sentence Variance (Burstiness)
94%
Vocab Diversity (TTR)
3
AI Cliche Matches
Sentence Breakdown
Sentence #1 (16 words)⚠️ AI Cliché Detected

Furthermore, it is important to recognize that artificial intelligence plays a crucial role in modern society.

Sentence #2 (16 words)

In conclusion, navigating this complex landscape requires careful deliberation, ensuring that all aspects are thoroughly considered.

Note: AI detection tools use statistical heuristics (perplexity, burstiness, and formulaic phrasing) to estimate patterns. Results are indicative indicators and should be evaluated in context.

About the AI Text Detector

With the widespread adoption of large language models, identifying whether a piece of content was written by an AI or a human has become an important consideration for educators, editors, and publishers. Large language models exhibit distinct statistical signatures: they favor uniform sentence lengths, rely heavily on predictable transition phrases, and maintain a consistent, moderate vocabulary diversity.

This AI Text Detector analyzes your text against key computational linguistic metrics: Burstiness (variance in sentence length), Perplexity proxies (lexical diversity and type-token ratios), and AI cliché frequency (common formulaic phrases like 'In conclusion', 'delve into', 'tapestry', and 'plays a crucial role').

To use it, paste your text (at least 20-30 words for best accuracy) into the analysis field. The tool immediately calculates an overall AI Probability score, displays a visual risk meter, and generates an interactive sentence-by-sentence breakdown highlighting uniform or formulaic passages.

For example, human writing naturally mixes short, punchy statements with long, complex descriptive sentences, producing a high burstiness score. In contrast, AI models often output sentences of nearly identical length (15-20 words each) with predictable transitional connectors, resulting in a high AI likelihood flag.

Important note: Statistical AI detection is heuristic and probabilistic. No detector can provide 100% definitive proof of AI authorship. False positives can occur, particularly with highly formal, standardized, or non-native human writing. Use this tool as an informative diagnostic aid rather than an absolute verdict.

Tip: Review the sentence-level breakdown to identify repetitive phrases or monotone cadence that you can manually revise to improve human readability and engagement.

Frequently Asked Questions

Q.How does the detector estimate AI probability?

It evaluates statistical markers including sentence length variance (burstiness), vocabulary diversity (Type-Token Ratio), and the presence of common AI transition clichés.

Q.Are AI detectors 100% accurate?

No, statistical text detectors provide heuristic estimates and should be used as diagnostic guides rather than definitive proof.

Q.Why does sentence length matter?

Humans naturally vary their sentence rhythm dramatically (mixing short and long sentences), whereas AI text tends to have very uniform sentence lengths.

Q.Does this tool upload my text to an AI provider?

No. All statistical heuristic calculations run locally inside your browser.

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