Kazan SEO AI Detector
Professional-grade AI content detection and semantic SEO analysis at zero cost.
Enterprise-grade linguistic pattern analysis for instant content authenticity verification.
AI Detector by Toolzu is a high-performance NLP utility designed to differentiate between human-written text and content generated by Large Language Models (LLMs) including GPT-4o, Claude 3.5, and Gemini 1.5. In the 2026 landscape, Toolzu positions itself as a critical bridge for digital marketers and SEO specialists who require rapid, browser-based verification without the overhead of heavy enterprise software. The technical architecture leverages advanced statistical analysis of perplexity and burstiness—two key metrics in computational linguistics. Perplexity measures the randomness of word choice, while burstiness evaluates the variance in sentence structure. By cross-referencing these metrics against a massive dataset of known AI patterns, Toolzu provides a probability score that helps users safeguard their domain authority against search engine penalties targeting low-effort synthetic content. While it functions as a lightweight web tool, its backend is regularly updated to recognize the nuances of 'humanized' AI text, making it a versatile asset for editorial workflows, academic monitoring, and social media management.
Calculates the complexity of the text string based on probability distributions found in training data.
Professional-grade AI content detection and semantic SEO analysis at zero cost.
Forensic-level AI content detection and advanced humanization for SEO-proof content.
Transform AI-generated text into undetectable, human-grade content with advanced linguistic humanization.
A non-profit open-source detector for educational integrity and transparent AI verification.
Verified feedback from the global deployment network.
Post queries, share implementation strategies, and help other users.
Measures the variation in sentence length and structure across the provided text.
Algorithms calibrated to detect signatures from OpenAI, Anthropic, and Google LLMs.
Publicly accessible web interface that doesn't require account creation for single checks.
Translates complex NLP data into a simplified 0-100% 'Human-like' vs 'AI-like' gauge.
In-memory processing of text strings for near-instant results.
Responsive web design allows for mobile-based AI detection checks.
Ensuring commissioned blog posts won't be flagged as 'spammy' by search engines.
Registry Updated:2/7/2026
Checking short-form student submissions for AI assistance.
Filtering out low-quality AI generated guest submissions for high-authority sites.