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Isgen AI Detector
What Isgen AI Detector is
Isgen AI Detector is a web and API service for estimating whether content may be AI-generated. It provides an overall Human, AI, and Mixed score, with sentence- and phrase-level analysis shown through color-coded highlights. Users can paste text or upload files individually or in bulk. Isgen says its detector supports over 80 languages and is trained to identify output from ChatGPT, GPT-5, Claude, Gemini, DeepSeek, and Llama. The site also lists a plagiarism checker, grammar checker and proofreader, AI humanizer, AI editor, citation generator, bulk scan, image detector, and video detector. Its AI Editor combines drafting, editing, proofreading, humanizing, and real-time AI score updates; the homepage says it can be started free without signing up. The Freemium plan includes a free AI detector. Academic costs $8 a month billed annually, and Ultimate costs $24 a month billed annually. Writing costs $15 a month billed annually, but does not include the AI detector or plagiarism checker. Isgen warns that AI checkers are not fully accurate and advises educators against relying on detector results alone to penalize students.
Who it suits
Isgen may suit students, educators, researchers, writers, and other listed audiences who want to assess text and review highlighted passages. Users needing AI detection or plagiarism checking should check which plan includes those tools.
What it does well
- Free AI detector plan.
- Supports over 80 languages, according to Isgen.
- Allows individual and bulk file scanning.
- Shows sentence- and phrase-level analysis.
- AI Editor can be started free without signing up.
What to know first
- Detector results are not fully accurate.
- Writing excludes AI detection and plagiarism checking.
- Unused words do not roll over monthly.
Limits
Freemium includes a free AI detector. Academic allows 350,000 detection words per month, 60,000 AI detector characters per submission, 100 bulk scans, and 15-day document history; unused words do not roll over. Ultimate includes unlimited monthly words, unlimited characters per submission, 150 bulk scans, and 30-day document history.
Plans
| Plan | Billed and limits | Price |
|---|---|---|
| Academic | Billed annually · 350,000 detection words/month · 60,000 AI detector characters/submission · 100 bulk scans · 15-day document history | $8 a month |
| Ultimate | Billed annually · Unlimited words/month · unlimited AI detector characters/submission · 150 bulk scans · 30-day document history · priority support | $24 a month |
| Writing | Billed annually · 50,000 humanizer words/month · AI detector and plagiarism checker not included · 30-day document history · priority support | $15 a month |
| Freemium | Free AI detector; free AI Editor start with no sign-up | Free |
As isgen.ai lists them, read 5 Oct 2026. The maker's own page has the final word.
Getting started
- Open https://isgen.ai/.
- Start the AI Editor free without signing up, or choose a plan.
- Paste text or upload files to scan.
- For programmatic access, follow the API plans linked through RapidAPI.
Verdict
Isgen pairs text analysis with a set of writing and detection tools, and provides a free detector tier. Treat its scores as indications rather than definitive judgments, as the maker cautions against using them alone to penalize students.
Questions
Is Isgen AI Detector free?
Yes. Freemium costs nothing and includes a free AI detector. The AI Editor can also be started free without signing up.
What do paid plans cost?
Academic is $8 a month billed annually, Ultimate is $24 a month billed annually, and Writing is $15 a month billed annually.
Which platforms does it support?
The listed platforms are web and API.
Does it support bulk scans?
Yes. Users can upload files in bulk, and the paid plan comparisons list bulk scan allowances.
How accurate is the detector?
Isgen says AI checkers are not 100% accurate and advises educators not to penalize students based on detector results alone.
Can users access an API?
Yes. Isgen links to API plans hosted on RapidAPI.
Facts from Isgen AI Detector's own pages
- Accuracy caveat
- Isgen states that AI checkers are not 100% accurate and advises educators not to penalize students based on detector results alone. · isgen.ai, 5 Oct 2026
- AI Editor
- The AI Editor combines drafting, editing, proofreading, humanizing, and real-time AI score updates; the homepage says users can start free without signing up. · isgen.ai, 5 Oct 2026
- API
- The homepage links to API plans hosted on RapidAPI. · isgen.ai, 5 Oct 2026
- Data handling
- The homepage says Isgen does not store data, while input history is maintained for paid users and can be deleted at any time. · isgen.ai, 5 Oct 2026
- Detection analysis
- The detector provides an overall Human, AI, and Mixed score, with sentence-level and phrase-level analysis and color-coded highlights. · isgen.ai, 5 Oct 2026
- File input
- Users can paste text or upload files individually or in bulk for scanning. · isgen.ai, 5 Oct 2026
- Intended users
- The maker names students, researchers, educators, academic institutions, content creators, journalists, professional writers, authors, business professionals, and legal professionals as audiences. · isgen.ai, 5 Oct 2026
- Languages
- The maker says its AI content detector supports over 80 languages. · isgen.ai, 5 Oct 2026
- Models
- The site says the detector is trained to identify outputs from models including ChatGPT, GPT-5, Claude, Gemini, DeepSeek, and Llama. · isgen.ai, 5 Oct 2026
- Other tools
- The site lists a plagiarism checker, grammar checker and proofreader, AI humanizer, AI editor, citation generator, bulk scan, image detector, and video detector. · isgen.ai, 5 Oct 2026
- Plan limits
- Unused words do not roll over to the next month, and cancellation leaves premium access active until the billing cycle ends before downgrading to Freemium. · isgen.ai, 5 Oct 2026
- Purpose
- Isgen describes itself as a multilingual AI detection company that helps users assess whether content is AI-generated. · isgen.ai, 5 Oct 2026
- Reports
- Paid plan feature comparisons list shareable and downloadable reports. · isgen.ai, 5 Oct 2026
- Support
- The pricing page lists priority support for Ultimate and Writing plans and gives support email [email protected]. · isgen.ai, 5 Oct 2026
Where Isgen AI Detector stands on Freedom251
- AI Content Detection Software#21 of 45
- AI Content Detectors#14 of 25