GPTZero 每月有 23,246,989 次造訪，月增率 +32.5%，定價模式為免費增值、付費。ProofUp 每月有 0 次造訪，成長率 -100%，定價模式為需聯絡報價。
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.
| 面向／指標 |  | |
|---|---|---|
| 官方網域 | gptzero.me | proofup.com |
| 定價模式 | 免費增值、付費 | 需聯絡報價 |
| 每月造訪次數 | 2324.7萬 (23,246,989) | 0 (0) |
| 月流量變化量 | +569.95萬 (+32.5%) | -1728 (-100%) |
| 主要市場與市佔 | 🇺🇸 美國 (54%) | 🌐 全球 (—) |
| 每月直接造訪 | 752.93萬 | 0 |
| 使用者評分 | 4.1 | 4 |
| 支援平台 | 網站 | 網站 |
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.
Paste text or upload a document and get an overall AI probability score plus a sentence-by-sentence breakdown of which parts look machine-written.
Flags AI text from major model families including ChatGPT, Gemini, Claude, Llama, and others, rather than training for a single model.
A Chrome extension and Google Docs add-on bring scanning into Gmail, Docs, Classroom, and other surfaces you already work in.
Checks content for copied passages from outside sources so you can separate AI-generation questions from originality questions.
在交出鑰匙前驗證收入、身分與文件
申請人透過 Plaid 連結銀行與薪資帳戶，收入直接從帳戶讀取，最可靠的路徑上沒有可偽造的文件。上傳文件的情況也會分析入帳頻率與實際收入。
身分證件正反面拍照，搭配即時自拍並以人臉辨識確認一致，在交鑰匙前攔下借用身分的情況。
上傳的 PDF 以位元層級解析，檢查隱藏文字層、中繼資料不一致、產生器指紋與事後編輯，找出肉眼看不到的證據。
每份申請給出五種判定之一（通過、附註意事項通過、非經常性、需人工複核、未通過），並附風險等級與觸發訊號。
專項更強Combines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
專項更強Combines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service.
免費 / 開源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.
免費 / 開源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.
提供強大的事實查核與全面的全站抄襲稽查，但比 GPTZero 有更嚴格的付費牆。
提供多語言文字的詳細句子級分析，但缺乏 GPTZero 廣泛的學術品牌知名度。
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.
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
專項更強Tailors detection specifically for academic institutions and LMS integrations, but is less optimized for casual web users.
專項更強Tailors detection specifically for academic institutions and LMS integrations, but is less optimized for casual web users.
專項更強StealthGPT is a writing platform that humanizes AI-generated text, scores it with an AI detector, and adds tools like stealth writer, SEO optimization and a Chrome auto-typer for detection-resistant content.
專項更強StealthGPT is a writing platform that humanizes AI-generated text, scores it with an AI detector, and adds tools like stealth writer, SEO optimization and a Chrome auto-typer for detection-resistant content.
專項更強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.
專項更強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.
