All GPTinf tools at a glance
Quick answer: GPTinf is one workspace with seven tools — AI Humanizer, AI Detector, Plagiarism Checker, Grammar Checker, Essay Writer, Paraphraser, and Readability Checker. You can move between them without leaving your text behind.
The seven tools
| Tool | What it does | Free access |
|---|---|---|
| AI Humanizer | Rewrites AI-generated text so it reads in a natural human voice. Eight modes. | 120 words/process (anonymous), 240 words total (registered) |
| AI Detector | Cross-checks your text against 8 AI detectors and shows one combined view. | Free and unlimited, no account |
| Plagiarism Checker | Scans your text against the web and returns matched sources with sentence-level attribution. | 500 words/day (registered free) |
| Grammar Checker | Real-time grammar, spelling, and punctuation fixes. Runs on a self-hosted engine. | 1,000 words/check (anonymous), 4,000 (registered) |
| Essay Writer | Generates a structured first draft from a topic, type, length, and tone. | Included on your plan's word budget |
| Paraphraser | Rewrites a passage for a cleaner sentence without changing the meaning. | Per-request limit on free; monthly budget on paid |
| Readability Checker | Scores your text with five readability formulas and flags hard words. | Free to check |
All seven tools are live today. The AI Detector is free and unlimited for everyone; the others have a free tier plus larger budgets on paid plans.
Which one should I start with?
- You have AI text and want it to read as human → AI Humanizer.
- You just want to check how text scores against detectors → AI Detector (no account needed).
- You want a smoother sentence without changing the meaning → Paraphraser.
- You need to check originality against the web → Plagiarism Checker.
- You want clean grammar and punctuation → Grammar Checker.
- You are starting an essay from scratch → Essay Writer.
- You want to know if your text is easy to read → Readability Checker.
Tip: The tools share one workspace, so you can humanize a draft, check its detection score, and run grammar — all without copying text between separate apps.
FAQ
Do I need an account to use them? The AI Humanizer and AI Detector work without an account. The Plagiarism Checker needs a free registered account. A free account also unlocks unlimited freeze keywords in the Humanizer.
Are all the tools included in one plan? Yes. A paid plan raises your Humanizer word budget and unlocks features like Fix All Errors; the other tools are part of the same subscription.
Related
- What is GPTinf? Tools, plans, and what it can do for you
- Which tool do I need? Decision guide
- Should I sign up? Free, Lite, Pro, Unlimited compared
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