Undetectable AI

AI Detector & Humanizer

AI Detective is a cross-platform app that detects AI-generated text from a camera, pasted text, files, or website URLs. It also includes a humanizer to rewrite text as more human-like, plus readability and plagiarism checks.

SpeedAI科研小助手

SpeedAI是专业的科研写作辅助平台，专注于AIGC检测和降重降AIGC率。平台提供智能降重、降AI检测率、学术润色等一站式科研工具，帮助用户高效降低论文重复率和AI痕迹。该平台支持模拟知网、维普、万方等主流查重系统，检测结果与官方误差小于10%，准确性高达99%。SpeedAI已服务超过150万用户，处理字符数超过300亿，获得清华大学、北京大学等众多高校学生的认可。平台提供免费试用额度，每日可免费进行5次AIGC检测，参与活动可获取6万字免费降重额度。SpeedAI采用先进的AI模型，降重后保持逻辑通顺，降AIGC率可降至10%以下，并支持全文一键修改，快速出结果。

Detector.io

Detector.io is a multi-AI-detection dashboard that aggregates results from five different AI checkers (GPTZero, Winston AI, AIDetector.pro, ZeroGPT, and its own model) in one place. It allows users to submit text once and receive a side-by-side comparison of AI likelihood scores, sentence-level highlights, and a built-in humanizer to refine flagged content. It is designed for students, teachers, recruiters, marketers, and SEO teams to verify content authenticity and avoid false confidence from relying on a single detector.

PaperBleach

PaperBleach is an AI-powered text humanization tool that rewrites AI-generated content from models like ChatGPT, Claude, and Gemini to make it sound more natural and human-like. It includes a built-in AI detector to score the rewritten text against common detection systems like GPTZero, Turnitin, Copyleaks, and ZeroGPT.

AI Detect

AI Detect is a web-based platform that combines a powerful AI detector with an AI humanizer, allowing users to identify AI-generated text and rewrite it to appear more human. The service claims 99% accuracy on major AI models like ChatGPT, Google Gemini, Claude Opus, Meta LLaMa, and Mistral AI, making it a go-to tool for verifying content authenticity. Beyond detection, AI Detect provides readability and grade level scoring, helping users refine their content for clarity and target audiences. With a free tier and flexible weekly, monthly, or yearly plans, it is designed for students, writers, marketers, and businesses seeking to maintain content originality and trust in an age of generative AI.