兩者的成長率相比如何？

GPTZero 的月增率為 +32.5%；Roundtable（Proof of Human）為 -60.5%。

價格相比如何？

GPTZero：免費增值、付費。Freemium plus paid plans. A free tier provides core detection with character limits per scan, while paid individual and institutional plans unlock advanced scan modes, higher limits, writing reports, and classroom integrations. Enterprise and API access are quoted separately. Roundtable（Proof of Human）：需聯絡報價。Roundtable（Proof of Human）未公布公開價格級距；價格採報價制並可洽詢。有意者會被引導預約示範或寄信給業務團隊，討論企業價格與用量。

GPTZero 與 Roundtable（Proof of Human）有哪些替代方案？

相關分類中的其他工具包括 ZeroGPT, Scribbr, hCaptcha, Branded, Undetectable AI。

GPTZero vs Roundtable（Proof of Human） — 流量 (2324.7萬 vs 854)、定價與選型結論

Open AI Tools

GPTZero vs Roundtable（Proof of Human） — 流量 (2324.7萬 vs 854)、定價與選型結論 | Open AI Tools

流量與規格並排比較表

面向／指標	GPTZero	Roundtable（Proof of Human）
官方網域	gptzero.me	roundtable.ai
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)	854 (854)
月流量變化量	+569.95萬 (+32.5%)	-1307 (-60.5%)
主要市場與市佔	🇺🇸 美國 (54%)	🇺🇸 美國 (100%)
每月直接造訪	752.93萬	336
使用者評分	4.1	3.9
支援平台	網站	網站

GPTZero

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.

Sentence-level AI detection

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.

Multi-model coverage

Flags AI text from major model families including ChatGPT, Gemini, Claude, Llama, and others, rather than training for a single model.

Browser and docs extensions

A Chrome extension and Google Docs add-on bring scanning into Gmail, Docs, Classroom, and other surfaces you already work in.

Plagiarism checking

Checks content for copied passages from outside sources so you can separate AI-generation questions from originality questions.

優勢與優點

+Sentence-level highlighting shows why a passage was flagged instead of only giving a score
+Covers text from many different AI model families, not just one chatbot
+Integrations with Chrome, Google Docs, Canvas, and Google Classroom fit existing school workflows
+Publishes concrete compliance claims (SOC 2 Type II, FERPA, GDPR, CCPA) that institutions can review