AI Detector by Reverso

The Reverso AI Detector, integrated within the broader Reverso Speller and Grammar ecosystem, represents a sophisticated fusion of traditional linguistic modeling and modern transformer-based neural network classifiers. By 2026, the tool has evolved to handle not just large language model (LLM) patterns from GPT-4 and Gemini, but also nuanced 'human-in-the-loop' hybrid content. Its technical architecture leverages perplexity and burstiness metrics alongside a proprietary database of multilingual syntax patterns collected over two decades of Reverso's operation. This allows for high-precision detection in languages often underserved by US-centric detectors, such as French, Spanish, and German. Positioned as a mission-critical tool for the 2026 digital economy, it serves as a frontline defense for SEO managers, academic institutions, and legal teams who require verifiable proof of human authorship. The platform provides a granular 'Human-Generated' vs. 'AI-Generated' probability score, highlighting specific segments that exhibit repetitive structural patterns characteristic of machine-generated text.