Clever AI Detector

Estimates AI-written text with probability scores.

About Clever AI Detector

Clever AI Detector is a free web-based tool designed to estimate the likelihood that a given text was generated by AI. It analyzes up to 10,000 words per check and provides a probability score, sentence-level signals, and confidence indicators. The tool emphasizes transparency by reporting probabilities rather than certainties and highlights sentences that most resemble AI writing. No sign-up is required to use the service, though creating an account enables check history. The tool is suitable for editors, writers, marketers, and professionals seeking to assess the origin of text. There are no ads or paywalls, and all features are available at no cost.

Best for: editors, writers, content managers, marketers, students, professionals

Key features

Analyzes text and estimates the probability it was written by AI
Provides sentence-level analysis and highlights AI-like sentences
Handles up to 10,000 words per check with unlimited runs
Offers confidence indicators for each result
Supports both English and Spanish text

Use cases

Checking articles or blog posts for AI-generated content before publishing
Auditing marketing copy or SEO content for AI signals
Reviewing emails, reports, or proposals to ensure they read naturally
Writers self-checking their own work for AI-like patterns

Pros

Completely free to use with no ads or paywall
Allows up to 10,000 words per check
Provides detailed sentence-level feedback

Limitations

Minimum text length of 80 words required for analysis
Detection is probabilistic and not 100% accurate

Screenshots

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