# GPTZero vs WriteHuman

GPTZero は月間 23,246,989 訪問、前月比成長率 +32.5%、料金体系フリーミアム、有料を記録しています。WriteHuman は月間 619,492 訪問、成長率 +15.6%、料金体系フリーミアム、有料を記録しています。

| 指標 | [GPTZero](https://openaitools.app/ja/tool/gptzero-me) | [WriteHuman](https://openaitools.app/ja/tool/writehuman) |
| :--- | :--- | :--- |
| ウェブサイト URL | https://gptzero.me | https://writehuman.ai |
| カテゴリ | AI検出ツール, AIチェッカー, AI コンテンツ検出ツール, AI 盗用チェッカー | Humanizer AI, 検出されないAI, Bypass AI（AI検出回避） |
| 料金モデル | フリーミアム、有料 | フリーミアム、有料 |
| 月間訪問数 | 23,246,989 | 619,492 |
| 前月比成長率 | +32.5% | +15.6% |
| 主要市場 | アメリカ合衆国 | アメリカ合衆国 |
| ダイレクト訪問 | 7,529,349 | 240,763 |
| レビュースコア | 4.1 | 3.5 |
| 保存数 | 41 | 28 |
| 対応プラットフォーム | ウェブサイト | ウェブサイト |

## 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.

**料金とプラン:** 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.

- **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.
- **Writing process verification:** Writing replay and advanced reports offer evidence about how a document was produced, useful for academic integrity workflows.

**強み:** 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

**制約・デメリット:** Detection is probabilistic and can flag polished human writing or miss lightly edited AI text; Free scans are capped by character count, and useful reporting features require payment; Lean heavily on a single score without human judgment can lead to unfair accusations

[Profile (Markdown)](https://openaitools.app/ja/tool/gptzero-me.md)

## WriteHuman

WriteHuman is an AI humanizer and detection suite. It rewrites text produced by ChatGPT, Claude, Gemini, Grok, DeepSeek and similar tools into natural, human-sounding prose, and includes an AI detector, an AI image detector, a word counter, a Chrome extension and a REST API for developers.

**料金とプラン:** Freemium. The free plan allows 3 humanizer requests/month up to 250 words with basic quality and 10 detector checks. Paid plans bill annually at $12/mo (Basic, 80 requests), $19/mo (Pro, 200 requests, MCP access) and $39/mo (Ultra, unlimited requests, 1,000 MCP calls/mo); monthly prices are $20/$29/$59. A word-priced REST API is sold separately. Cancel anytime and switch plans freely.

- **AI humanizer:** Paste text from any AI writing tool and get back a rewrite with more natural rhythm, varied sentence lengths and less formulaic word choices, while keeping the original meaning intact.
- **Built-in AI detector:** Score your draft sentence by sentence so you can see which lines read as human, which are borderline, and which still read as machine-written before you publish.
- **AI image detector and word counter:** Check whether an image looks AI-generated, alongside a word and character counter for quick draft checks.
- **Chrome extension, mobile apps and MCP:** Humanize and fix writing in any browser tab with the Chrome extension, and use mobile apps plus MCP access to reach the same engine from your phone or your AI agents.
- **Developer API:** A REST endpoint with word-based pricing, 40+ language support and code examples in JavaScript, Python and cURL for automated pipelines.

**強み:** Very short workflow: paste text, click once, get a publishable rewrite; Sentence-level AI probability scores make it easy to spot problem lines; Broad integration surface as a Chrome extension, mobile app, API and MCP server; Covers 40+ languages for multilingual content teams

**制約・デメリット:** AI-detector outcomes are never guaranteed, since detectors keep updating their models; Free tier is only 3 requests per month with a 250-word cap and basic quality; Output quality varies by language and by how formulaic the source text is; Unlimited plans still cap the words per single request

[Profile (Markdown)](https://openaitools.app/ja/tool/writehuman.md)

## よくある質問

### GPTZero と WriteHuman の月間トラフィックはどのように比較されますか？

GPTZero の月間訪問数は 23,246,989、WriteHuman は 619,492 です。トラフィックの推定値はオーディエンスの規模を示すものであり、製品の品質を示すものではありません。

### 成長率はどのように比較されますか？

GPTZero の前月比成長率は +32.5%、WriteHuman は +15.6% です。

### 料金はどのように比較されますか？

GPTZero: フリーミアム、有料。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. WriteHuman: フリーミアム、有料。Freemium. The free plan allows 3 humanizer requests/month up to 250 words with basic quality and 10 detector checks. Paid plans bill annually at $12/mo (Basic, 80 requests), $19/mo (Pro, 200 requests, MCP access) and $39/mo (Ultra, unlimited requests, 1,000 MCP calls/mo); monthly prices are $20/$29/$59. A word-priced REST API is sold separately. Cancel anytime and switch plans freely.

## 代替ツール

| # | ツール名 | 月間訪問数 | 前月比成長率 | 料金モデル | Summary | Profile (Markdown) |
| :--- | :--- | :--- | :--- | :--- | :--- | :--- |
| 1 | [QuillBot Paraphraser](https://openaitools.app/ja/tool/quillbot-paraphraser) | 36,630,337 | +2.3% | フリーミアム | QuillBot is an AI writing suite best known for its paraphrasing tool. Users paste or type text and have it rewritten in different tones and styles, while companion tools handle grammar checking, summarizing, citations, p | [.md](https://openaitools.app/ja/tool/quillbot-paraphraser.md) |
| 2 | [ZeroGPT](https://openaitools.app/ja/tool/zerogpt) | 32,864,541 | +19.7% | フリーミアム、有料 | 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, translat | [.md](https://openaitools.app/ja/tool/zerogpt.md) |
| 3 | [HumanizeAI.pro](https://openaitools.app/ja/tool/humanizeai-pro) | 9,652,312 | +26% | 無料 | ボリュームのある無料プランとブラウザでの高速リライト機能を備えていますが、高度なAPIアクセスや細かなスタイル調整はありません。 | [.md](https://openaitools.app/ja/tool/humanizeai-pro.md) |
| 4 | [Scribbr](https://openaitools.app/ja/tool/scribbr) | 7,530,803 | +14.6% | フリーミアム | Combines AI detection with professional human proofreading and citation tools, but functions primarily as an editing service. | [.md](https://openaitools.app/ja/tool/scribbr.md) |
| 5 | [Undetectable AI](https://openaitools.app/ja/tool/undetectable-ai) | 3,113,403 | +17.5% | フリーミアム | マルチモデルのAI検出とバッチ処理が強力ですが、長文の出力には有料プランが必要です。 | [.md](https://openaitools.app/ja/tool/undetectable-ai.md) |
| 6 | [StealthWriter](https://openaitools.app/ja/tool/stealthwriter) | 2,887,114 | +15.5% | フリーミアム | 多様な人間味付けモードとトーン調整機能を備えていますが、堅苦しい学術的・技術的なフォーマットには苦戦します。 | [.md](https://openaitools.app/ja/tool/stealthwriter.md) |
| 7 | [Copyleaks](https://openaitools.app/ja/tool/copyleaks) | 2,402,494 | -14.1% | 有料、料金は要問い合わせ | 企業向けの強力なコンテンツ整合性チェックとクロスメディア検出を提供しますが、個人ユーザーには費用が高くなることがあります。 | [.md](https://openaitools.app/ja/tool/copyleaks.md) |
| 8 | [Originality.ai](https://openaitools.app/ja/tool/originality) | 2,049,639 | +2.8% | 有料 | 1回のスキャンでAI検出・盗用チェック・コンテンツ品質評価を完了 | [.md](https://openaitools.app/ja/tool/originality.md) |
| 9 | [Walter Writes AI](https://openaitools.app/ja/tool/walter-ai) | 1,474,367 | +24.4% | フリーミアム | AIの人間味付けと包括的なコンテンツ制作ツールを組み合わせていますが、素早い編集を行うには習得のハードルがやや高めです。 | [.md](https://openaitools.app/ja/tool/walter-ai.md) |
| 10 | [Phrasly](https://openaitools.app/ja/tool/phrasly-ai) | 1,209,985 | +17.9% | Freemium, Subscription | 人間味付け機能に加え、強力なAIライティングアシスタントを内蔵していますが、時々表現が過度に華美になることがあります。 | [.md](https://openaitools.app/ja/tool/phrasly-ai.md) |

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出典: https://openaitools.app/ja/compare/gptzero-me-vs-writehuman

More Markdown: [カテゴリ](https://openaitools.app/ja/categories.md) · [トラフィックランキング](https://openaitools.app/ja/rankings.md) · [llms.txt](https://openaitools.app/ja/llms.txt)