AI Content Detector by SEOTools2

The AI Content Detector by SEOTools2 is a sophisticated linguistic analysis engine designed to evaluate the origin of textual data by measuring two primary metrics: Perplexity and Burstiness. Operating in the 2026 market landscape, where AI-generated content has become increasingly indistinguishable from human prose, this tool utilizes advanced LLM fingerprinting to identify patterns typical of models like GPT-4, Claude 3.5, and Gemini Ultra. The technical architecture relies on a large-scale probability matrix that calculates the likelihood of the next token in a sequence; high predictability correlates with machine generation. Positioned as a mission-critical utility for SEO professionals, the tool helps maintain search engine compliance by ensuring content meets E-E-A-T (Experience, Expertise, Authoritativeness, and Trustworthiness) standards. It provides a sentence-by-sentence breakdown, allowing editors to pinpoint specific sections that require humanization. Unlike basic detectors, SEOTools2 integrates a feedback loop that updates its detection algorithms as new LLM versions are released, maintaining a competitive edge in accuracy and reducing false positives in creative or technical writing.