kitio.aiAdded Nov 5, 2026
Isgen
FreemiumAI detector with plagiarism checking, humanizer and slide maker
What is Isgen?
Isgen checks text for signs of ChatGPT, Claude, Gemini, DeepSeek and other models, highlighting suspect sentences and phrases in color. Teachers, students and writers use it to review work, and paid plans add plagiarism checks, grammar tools and a presentation maker.
The free checker takes up to 5,000 characters at a time or an uploaded file, and paid users can scan documents in bulk. The analysis works at sentence and phrase level, so you can see which parts look machine-written, and the detector is described as working across languages.
Higher plans add an AI humanizer, proofreader, AI editor and a slide generator that runs on presentation credits. Custom usage volumes and API plans are arranged by contacting the company.
Features
- Sentence-level AI detection
- Plagiarism checker
- Bulk file scanning
- Grammar checker
- AI humanizer
- Presentation maker
Tags
Releases
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Organization
Isgen
Listed by kitio.ai · unverified owner
Pricing
- Pricing model
- Freemium
- Paid options from
- Not listed
Isgen plans
Free
Free
- Up to 5,000 characters per check
- Basic AI detection
Academic
$8/mo billed yearly
- 350,000 detection words a month
- Premium plagiarism checker
- Batch file upload
Writing
$15/mo billed yearly
- 50,000 humanizer words a month
- AI proofreader
- 4,000 presentation credits
Ultimate
$24/mo billed yearly
- Unlimited words
- Humanizer and proofreader
- 8,000 presentation credits
- Priority support
Prices in USD, checked Nov 5, 2026. Plans change often, so confirm on the Isgen site.Official pricing
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Pros and cons
Pros
- Highlights AI text sentence by sentence
- Bulk scanning on paid plans
- Bundles plagiarism and grammar checks
Cons
- AI detectors can flag human writing
- Free checks capped at 5,000 characters
- Listed prices assume yearly billing
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Q&A
What is Isgen?
Isgen checks text for signs of ChatGPT, Claude, Gemini, DeepSeek and other models, highlighting suspect sentences and phrases in color. Teachers, students and writers use it to review work, and paid plans add plagiarism checks, grammar tools and a presentation maker.
Does Isgen have an API?
API access is offered through custom plans, which you set up by contacting Isgen.
Can Isgen check whole documents?
Yes. You can upload files, and paid plans add bulk scanning and larger documents.
How much does Isgen cost?
Isgen is freemium.
Is there a free version of Isgen?
Yes. Isgen has a free plan, and paid plans add more usage and features.
What are the main features of Isgen?
Sentence-level AI detection, Plagiarism checker, Bulk file scanning, Grammar checker, AI humanizer, Presentation maker.
Who makes Isgen?
Isgen is made by Isgen.
What are the best alternatives to Isgen?
Popular alternatives include Turnitin, Plag, Advacheck.