Checkstep vs ContentMod

免費 / 開源ZeroGPT is an AI content detection platform with a text AI detector, AI image and video detectors, AI humanizer, plagiarism checker, and a set of writing tools including paraphraser, summarizer, grammar checker, translator, and citation helper.

GPTZero is an AI detection platform for identifying machine-generated text. It combines a text detector with a Chrome extension, a plagiarism checker, writing-process verification, and educator-focused classroom tools.

Undetectable AI is a web platform that scans text for AI fingerprints and rewrites flagged passages so they read like natural human writing. It bundles an AI detector, an AI humanizer and a growing set of media authenticity tools in a single dashboard.

專項更強為內容完整性打造的企業級 AI 與抄襲偵測

一次掃描完成 AI 偵測、抄襲比對與內容品質評估

專項更強為大規模場景打造的 AI 驗證碼辨識 API

免費 / 開源Winston AI is an AI content detection suite that identifies text and images produced by generators like ChatGPT, Gemini, and Claude. Alongside its detector it offers plagiarism checking, an AI image and deepfake detector, writing feedback, and an API for embedding detection into other platforms.

不只給分數，還標出證據的 AI 檢測器

免費 / 開源多模態 AI 偵測 API，辨識合成影像、文字、音訊、影片與深偽內容

免費 / 開源Privatemode is an always-encrypted AI service from Edgeless Systems that keeps your prompts and data confidential end to end, even while the model is processing them, using confidential computing inside the cloud.

會展示推理過程的 AI 影像與深偽取證工具

免費 / 開源把影片、音訊與文件變成可查詢資料列的多模態資料倉儲