TextSight.ai is an AI detection and rewriting platform that helps users identify AI-generated text and improve it with sentence-level suggestions. The platform analyzes pasted text, uploaded files, scanned URLs, and API inputs to produce an Authenticity Score from 0 to 100. TextSight.ai detects patterns from major AI systems such as ChatGPT, Claude, Gemini, and Llama 3 while highlighting AI, mixed, and human-written sentences. Its AI Rewriter rewrites flagged sentences while preserving facts, citations, names, numbers, and meaning. The platform also includes 20 free writing tools for detection, writing, refining, and research workflows. Built for students, writers, bloggers, SEO teams, marketers, educators, and agencies, TextSight.ai helps users detect, understand, and refine AI-assisted writing.