# Isgen AI Detector

According to OpenAITools.app telemetry verified on 2026-11-11, Isgen AI Detector (isgen.ai) is an AI platform indexed under AI Detector (ranked #251 globally) generating 901.92K monthly visits with a month-over-month traffic delta of +49.42K (+5.8%). Its primary geographic market is South Korea (15% traffic share), and it operates on a Freemium pricing model. Top competing alternatives by monthly volume include GPTZero (23.25M visits/mo), Originality.ai (2.05M visits/mo), ZeroGPT (32.86M visits/mo).

Multilingual AI detector with sentence-level insight

## Key Telemetry & Specifications

| Metric | Value |
| :--- | :--- |
| Tool Name | Isgen AI Detector |
| Handle | isgen-ai |
| Status | active |
| Origin | independent |
| Maintenance | active |
| Official Domain | isgen.ai |
| Website URL | https://isgen.ai |
| Categories | AI Detector, AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, Humanizer AI |
| Pricing Model | Freemium |
| Monthly Visits | 901,917 |
| MoM Traffic Change | 49,423 |
| MoM Growth Rate | +5.8% |
| Primary Market | South Korea |
| Market Share | 15% |
| Direct Visits | 188,341 |
| Organic Search Visits | — |
| Social Visits | — |
| Referral Visits | 46,147 |
| Email Visits | 1,454 |
| Review Score | 3.8 |
| Saved Count | 0 |
| Supported Platforms | Website |
| Billing Platforms |  |
| Attributes | Pricing: Freemium; Features: Website |
| Tags | AI detector, AI content detector, AI writing detector, ChatGPT detector, GPT-5 detector, Claude detector, Gemini detector, DeepSeek detector, Llama detector, Mistral detector, AI-generated text detection, AI checker, Multilingual AI detection, AI plagiarism detection, Human-written content verification, Mixed content detection, Sentence-level analysis, Phrase-level analysis, Color-coded AI highlights, AI impact scores, Plagiarism checker, Grammar checker, AI proofreader, AI humanizer, AI editor, Citation generator, Bulk AI scan, Batch file upload, Detection reports, Academic integrity, Essay checker, AI detector for teachers, AI detector for students, Content authenticity, Writing analysis, Document verification |

## Overview

Isgen positions itself as a high-accuracy AI checker for teachers, students, editors and content teams. You paste or upload text, optionally in bulk, and the detector first scores the document as a whole before running a second pass that classifies individual sentences as Human, AI or Mixed. Results are shown with color-coded highlighting and an AI impact score list, so you can jump straight to the passages most responsible for a high AI reading.

Beyond raw detection, Isgen wraps a wider writing-integrity toolset around the core engine: a plagiarism checker, an AI grammar checker and proofreader, a humanizer, a presentation maker and an AI Editor that shows your AI score while you draft. The editor is designed to remove the usual copy-paste loop between a word processor, a detector and a rewriting tool.

The product follows a freemium model with a free entry point and paid tiers. Public pricing shows an Academic plan around $8 per month, a Writing plan around $15 per month and an Ultimate plan around $24 per month when billed annually, alongside separate API plans. Detection limits, credits for presentation and humanizer usage, document history length and support level differ between tiers.

## Pricing & Plans

Freemium with paid subscription tiers. Public annual-billing pricing lists roughly $8/month (Academic), $15/month (Writing) and $24/month (Ultimate), plus separate API plans and a free starting option with limited detection volume.

## Key Features & Capabilities

- **Multilingual detection across 80+ languages:** The detector is trained for broad language coverage rather than English-only use, which matters for international schools, multilingual newsrooms and cross-border content teams.
- **Sentence- and phrase-level analysis:** After the overall score, a second pass labels each sentence as Human, AI or Mixed and highlights the specific phrases pushing the score up.
- **Color-coded results and AI impact scores:** Flagged passages are highlighted in the document, and a ranked impact list lets you scroll to the highest-signal sentences first.
- **Bundled integrity toolkit:** Plagiarism checking, grammar proofreading, humanizing, an AI Editor and a presentation maker sit alongside the detector in one account.
- **Bulk scan and file upload:** Individual and batch file uploads plus high document-history retention on higher tiers suit educators grading many submissions at once.

## Primary Use Cases

- **Reviewing student submissions (Educator):** Run essays through the detector and use sentence-level labels as a starting point for conversations about originality, rather than treating the score as a verdict.
- **Vetting freelance drafts (Editor or content manager):** Check incoming articles for machine-generated passages and isolate the exact lines that need rewriting before publishing.
- **Self-checking your own draft (Student or writer):** Use the AI Editor to watch your AI score change live while you revise, then humanize anything that reads too robotic.
- **Auditing translated content (Localization team):** Because 80+ languages are supported, non-English deliverables can be screened without routing everything through an English translation first.

## Strengths

- Broad language coverage compared with English-first detectors
- Sentence and phrase breakdown makes results easier to act on
- Several related writing tools included in one subscription
- Bulk upload and document history suit high-volume users

## Limitations

- AI detection is probabilistic and can still produce false positives
- Useful limits such as humanizer words and history length vary by tier
- Heavier features require a paid plan

## Frequently Asked Questions

### Does Isgen only work with English text?
No. The detector is built for multilingual use and the site states support for over 80 languages, with sentence- and phrase-level analysis applied across them.

### Can I try it before paying?
Yes, there is a free starting point with limited detection volume. Paid tiers add higher word allowances, batch uploads, longer document history and access to the humanizer, proofreader and presentation tools.

### How accurate are AI detectors in general?
No detector is perfectly accurate. Treat the score and the highlighted passages as evidence to review manually, especially for high-stakes academic or editorial decisions.

### Is there an API?
Yes, Isgen lists separate API plans on its pricing page for teams that want to run detection programmatically.

### What is Isgen AI Detector's monthly traffic and growth trend?
Isgen AI Detector currently receives 901.92K monthly visits, with a month-over-month traffic change of +49.42K (+5.8% growth rate). Its primary source market is South Korea (15% share), including 188.34K direct visits/mo and — organic search visits/mo.

### Is Isgen AI Detector free? What is its pricing model?
Isgen AI Detector operates on a Freemium pricing model. Freemium with paid subscription tiers. Public annual-billing pricing lists roughly $8/month (Academic), $15/month (Writing) and $24/month (Ultimate), plus separate API plans and a free starting option with limited detection volume. Supported billing and checkout platforms include: not listed.

### What are the best Isgen AI Detector alternatives in 2026?
Based on OpenAITools.app category traffic and feature fit, the top five alternatives to Isgen AI Detector are: 1. GPTZero (23.25M visits/mo); 2. Originality.ai (2.05M visits/mo); 3. ZeroGPT (32.86M visits/mo); 4. Copyleaks (2.4M visits/mo); 5. Winston AI (604.45K visits/mo).

### Which platforms and core AI capabilities does Isgen AI Detector support?
Isgen AI Detector is classified under AI Detector, AI Content Detector, AI Grammar Checker, AI Plagiarism Checker, supports the following platforms: Website, and its core capability tags include: AI detector, AI content detector, AI writing detector, ChatGPT detector, GPT-5 detector, Claude detector.

## Alternatives

| Tool Name | Monthly Visits | Pricing Model | Compare |
| :--- | :--- | :--- | :--- |
| [GPTZero](https://openaitools.app/tool/gptzero-me) | 23,246,989 | Freemium, Paid | [Compare](https://openaitools.app/compare/gptzero-me-vs-isgen-ai) |
| [Originality.ai](https://openaitools.app/tool/originality) | 2,049,639 | Paid | [Compare](https://openaitools.app/compare/isgen-ai-vs-originality) |
| [ZeroGPT](https://openaitools.app/tool/zerogpt) | 32,864,541 | Freemium, Paid | [Compare](https://openaitools.app/compare/isgen-ai-vs-zerogpt) |
| [Copyleaks](https://openaitools.app/tool/copyleaks) | 2,402,494 | Paid, Contact for Pricing | [Compare](https://openaitools.app/compare/copyleaks-vs-isgen-ai) |
| [Winston AI](https://openaitools.app/tool/winston-ai) | 604,454 | Freemium, Free Trial | [Compare](https://openaitools.app/compare/isgen-ai-vs-winston-ai) |
| [Undetectable AI](https://openaitools.app/tool/undetectable-ai) | 3,113,403 | Freemium | [Compare](https://openaitools.app/compare/isgen-ai-vs-undetectable-ai) |
| [Detecting-AI.com](https://openaitools.app/tool/detecting-ai-com) | 505,146 | Freemium, Paid | [Compare](https://openaitools.app/compare/detecting-ai-com-vs-isgen-ai) |
| [Quetext](https://openaitools.app/tool/quetext-com) | 280,056 | Freemium | [Compare](https://openaitools.app/compare/isgen-ai-vs-quetext-com) |
| [StealthWriter](https://openaitools.app/tool/stealthwriter) | 2,887,114 | Freemium | [Compare](https://openaitools.app/compare/isgen-ai-vs-stealthwriter) |
| [Scribbr](https://openaitools.app/tool/scribbr) | 7,530,803 | Freemium | [Compare](https://openaitools.app/compare/isgen-ai-vs-scribbr) |

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Source: https://openaitools.app/tool/isgen-ai