Paste any article and receive an AI-vs-human authorship likelihood score with per-paragraph breakdown. Flags sentences with typical LLM tells. Useful for educators checking assignments, editors vetting submissions, and journalists screening sources. Works on Chinese and English text. Maximum context window (input and output combined): about 1,048,576 tokens. Maximum output per reply: about 65,536 tokens (model reasoning, if any, counts toward this limit). Maximum total upload size per request: 256MB (all files and message content combined). Accepted document formats: pdf, docx, xlsx, pptx, txt, csv (file content is provided to the model as extracted text). Accepted image formats: heic, heif, jpeg, jpg, png, webp. Maximum number of images: 3600. Maximum size per image: 14MB. Maximum total image size per message: 14MB (text and history share the same request size limit; uploads close to the limit may still be rejected). Image dimensions: at least 200 pixels per side. Maximum image resolution: 36,000,000 pixels in total. Output content formats: Text This module does not support continuous conversations. AI can make mistakes. Please verify important information.