Copyleaks 每月有 2,402,494 次造訪，月增率 -14.1%，定價模式為付費、需聯絡報價。EchoMark 每月有 8,044 次造訪，成長率 +10.6%，定價模式為免費增值、需聯絡報價。
| 面向／指標 |  |  |
|---|---|---|
| 官方網域 | copyleaks.com | echomark.com |
| 定價模式 | 付費、需聯絡報價 | 免費增值、需聯絡報價 |
| 每月造訪次數 | 240.25萬 (2,402,494) | 8044 (8,044) |
| 月流量變化量 | -39.44萬 (-14.1%) | +772 (+10.6%) |
| 主要市場與市佔 | 🇺🇸 美國 (53.2%) | 🇺🇸 美國 (100%) |
| 每月直接造訪 | 75.85萬 | 3187 |
| 使用者評分 | 4.4 | 4.3 |
| 支援平台 | 網站 | 網站 |
為內容完整性打造的企業級 AI 與抄襲偵測
辨識超過 30 種語言與主流 LLM 的 AI 生成文字，內部英文測試集準確率宣稱超過 99%。
搜尋 60 兆個網站、16,000 多種開放取用期刊與內部資料庫，揪出改寫與隱藏複製。
將偵測延伸至 AI 生成的影片、音訊與圖像，讓團隊能驗證文字以外的內容。
可擴充的 API 與工作流程整合，自動化 LMS、出版工具與企業系統中的內容分析。
用隱形取證浮水印定位資料外洩源頭
每位收件人收到的郵件、文件或圖片都帶有不同的隱藏標記，因此單一外洩物即可指向特定個人。
Luma 圖片標記專為抵禦列印、影印、手機翻拍與壓縮而設計，補足了以中繼資料為基礎的標記方案失效的場景。
對螢幕上顯示的一切加標，涵蓋任何應用與檔案類型，包括瀏覽器、協作工具與 AI 助理。
上傳外洩的檔案、截圖或照片，即可取得來源收件人、信心分數以及證據鏈文件。
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.
專項更強除了抄襲檢查外還包含專家人工校對，但缺乏原生的自動 AI 內容檢測功能。
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.
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.
一次掃描完成 AI 偵測、抄襲比對與內容品質評估
提供多語言文字的詳細句級分析，但缺乏 Copyleaks 廣泛的企業功能。
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.
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
為學校、大學與團隊打造的準確抄襲與 AI 偵測
Quetext is an online writing-integrity platform built around its DeepSearch™ engine, combining a plagiarism checker, AI content detector, grammar checker, summarizer, humanizer, citation generator and paraphrasing assistant in one dashboard. It is used by students, teachers, copywriters and content teams to confirm that a piece of writing is original, human-written and properly sourced before it is submitted or published.
Quetext is an online writing-integrity platform built around its DeepSearch™ engine, combining a plagiarism checker, AI content detector, grammar checker, summarizer, humanizer, citation generator and paraphrasing assistant in one dashboard. It is used by students, teachers, copywriters and content teams to confirm that a piece of writing is original, human-written and properly sourced before it is submitted or published.
免費、無限制的 AI 內容偵測，支援逐句評分
會展示推理過程的 AI 影像與深偽取證工具
