AI Detector by SpellCheck.info

AI Detector by SpellCheck.info is a high-performance linguistic analysis utility designed for the 2026 content landscape. It operates by evaluating text through a dual-lens approach of perplexity and burstiness. Unlike simple keyword-matching tools, this detector identifies the mathematical signatures of Large Language Models (LLMs) including GPT-4o, Gemini 1.5 Pro, and Claude 3.5 Sonnet. As generative AI becomes more sophisticated, SpellCheck.info utilizes a refined statistical model that distinguishes between the predictable cadence of synthetic text and the irregular complexity of human writing. In the 2026 market, it occupies a critical niche as a low-latency, friction-free verification layer for digital publishers, academic institutions, and SEO agencies. The architecture is optimized for web-scale processing, offering a serverless execution model that returns results in milliseconds. Its positioning emphasizes accessibility, providing high-accuracy detection without the prohibitive seat-based costs associated with enterprise forensic suites, making it an essential tool for high-volume content moderation and quality assurance workflows.