What does GPTinf actually do?

GPTinf is a writing suite with six tools: an AI humanizer, an AI detector, a paraphraser, a plagiarism checker, a readability checker and a grammar checker. You typically humanize a draft, then check it for AI signals, plagiarism and readability before publishing or submitting.

Is there a free version?

Yes. The AI detector is advertised as free and unlimited, and there is a free tier so you can try the platform. Humanizer and paraphraser word allowances increase on the paid Lite, Pro and Unlimited plans.

How much do the paid plans cost?

The site lists Lite at $4.99 per month, Pro at $12.49 per month, and Unlimited at $29.99 per month, with the main difference being how many humanizer and paraphraser words you get each month.

Will humanized text pass AI detectors?

No tool can guarantee a specific result, and detector scoring changes over time. GPTinf's approach is to reduce the statistical patterns detectors often flag and let you review segment-level risk, so treat its output as one input rather than a promise.

Can I keep important words unchanged?

Yes. The Freeze option lets you lock terms, names or jargon so the humanizer and paraphraser leave them exactly as written.

Does GPTinf check plagiarism?

Yes. Its plagiarism checker scans your text against web sources, returns a plagiarism percentage, highlights flagged sentences and links each match to the source URL.

GPTinf の月間トラフィックと成長トレンドはどうですか？

GPTinf は現在、月間 67.42万の訪問があり、前月比のトラフィック変動は +13.85万（成長率 +25.8%）です。主要な流入市場はアメリカ合衆国（シェア 33.1%）で、月間 22.26万のダイレクト訪問と月間 — のオーガニック検索訪問を含みます。

GPTinf は無料ですか？料金モデルは何ですか？

GPTinf はフリーミアム、無料トライアル、有料の料金モデルで運営されています。Freemium with a free tier that includes an unlimited AI detector, plus paid monthly subscriptions. Plans shown on the site are Lite at $4.99/month (5,000 humanizer words and 2,500 paraphraser words), Pro at $12.49/month (25,000 humanizer words and 12,500 paraphraser words), and Unlimited at $29.99/month with no caps on humanizer or paraphraser words. 対応する請求・チェックアウトプラットフォームには paddle が含まれます。

GPTinf — 月間訪問数 (67.42万/月)・料金・API・代替ツール比較

Open AI Tools

GPTinf — 月間訪問数 (67.42万/月)・料金・API・代替ツール比較 | Open AI Tools

GPTinf について

AI Humanizer with Freeze

Rewrites AI-style text to read more naturally and rebuilds sentence rhythm, with a Freeze option that locks the words, names or phrases you need to keep exactly as written.

Multi-System AI Detector

Cross-checks your text against eight detection systems at once and shows a segment-level, color-coded breakdown so you can see which sentences carry the highest risk.

Paraphraser with Writing Modes

Rephrases text in different modes so you can adjust tone, register or wording while locking important terms and preserving the original meaning.

Plagiarism Checker

Scans your text against web sources, returns a plagiarism percentage, flags matching sentences and traces each match back to its source URL.

Readability & Grammar Checkers

Reports a Flesch-Kincaid readability score with difficult passages highlighted, and catches contextual grammar errors you can fix with a single click.

GPTinf is a web-based writing suite that combines AI humanization with a set of detection and quality tools. Paste your draft and it rewrites AI-style prose into more natural, human-sounding text, while its detector, plagiarism, readability and grammar tools help you spot problems before you publish or submit.

GPTinf の効果的なユースケース

Students & academics

Prepare essays before submission

Humanize an AI-assisted draft, then run it through the detector and plagiarism checker to see what a grading tool like Turnitin might flag before you hand it in.

Content marketers & freelancers

Scale copy without losing your voice

Turn AI-generated blog posts and marketing drafts into text that matches your brand tone, then confirm it reads cleanly and is plagiarism-free before publishing.

Educators

Review submissions for AI involvement

Use the detector and plagiarism checker to spot likely AI-generated or copied passages in student work before grading.

ESL & business writers

Polish non-native and templated writing

Refine structured or formulaic drafts so phrasing sounds natural and professional, and check readability so the text suits your audience.

GPTinf の代替ツール・競合トップ 12 件

同じ主要カテゴリの競合 AI ツールをテレメトリで並列比較

GPTinf の代替ツールをすべて見る →AI バイパスツールのツールをすべて見る →

順位	AI ツール	月間訪問数	前月比成長率	直接流入の割合	料金	直接比較
●	GPTinf	67.42万	+25.8%	直接流入 33%	フリーミアム、無料トライアル、有料	表示中
1	StealthWriter	288.71万	+15.5%	直接流入 56%	フリーミアム	vs StealthWriter
2	AI Humanize	215.21万	+8.1%	直接流入 39%	フリーミアム、有料	vs AI Humanize
3	Phrasly	121万	+17.9%	直接流入 46%	Freemium, Subscription	vs Phrasly
4	CapMonster Cloud	86.23万	+36.3%	直接流入 4%	有料	vs CapMonster Cloud
5	HumanizeAI.io	38.77万	-5.1%	直接流入 60%	フリーミアム	vs HumanizeAI.io
6	Humbot	32.59万	-9.7%	直接流入 20%	フリーミアム	vs Humbot