Isgen is a multilingual AI content detector that identifies text from ChatGPT, GPT-5, Claude, Gemini, DeepSeek and more, with sentence-level analysis and writing-integrity tools for students and educators.
About
Isgen (isgen.ai) is an AI content detection platform built to help people verify whether a piece of writing was produced by an AI model or a human. It covers text generated by major systems including ChatGPT, GPT-5, Claude, Gemini, DeepSeek, Llama, Mistral, Grok, Qwen, and Microsoft Copilot, and it supports more than 80 languages, which sets it apart from detectors that mainly handle English.
The company positions the product primarily for students and educators, who make up a large share of its user base. Detection runs on an ensemble of AI systems trained on millions of samples across supported languages. Users paste text, upload files (PDF, DOCX, DOC), or scan a public URL, and Isgen returns an overall Human, AI, and Mixed percentage breakdown, then breaks results down sentence by sentence and phrase by phrase with color-coded highlights. When the model is uncertain, it defaults to a human-written classification to reduce false positives.
Key Features
Pricing & Fees
- Pricing: Paid plans start at $8/month (Academic, billed annually), with a Writing plan at $15/month and an Ultimate plan at $24/month billed annually; a free tier is available and the AI Editor can be started without signing up.
- Plan limits: Academic includes 350,000 detection words per month; Ultimate includes unlimited detection words, the AI Humanizer, and priority support; Writing focuses on the humanizer and proofreader with 50,000 humanizer words per month.
- False-positive safeguard: When detection confidence is low, Isgen classifies the text as human-written, a design choice aimed at protecting students from unfair accusations.
- Privacy: The company states that no user data is stored or used for model training; paid users have an optional input history that can be deleted at any time.
Who It's For
Isgen is aimed mainly at students, researchers, and scholars who want to check essays and papers for unintentional AI patterns before submission. Educators and academic institutions use the sentence- and phrase-level evidence to support academic integrity reviews, treating results as one input alongside a student's own explanation. Content writers, editors, and publishers also use it to verify originality of drafts and web content, and multilingual teams benefit from the 80-plus language coverage.
FAQ
What is Isgen?Isgen is a multilingual AI detector and writing-integrity platform that identifies text generated by models such as ChatGPT, GPT-5, Claude, Gemini, and DeepSeek across more than 80 languages.
Does Isgen have a free plan?Yes, Isgen offers a free tier, including the ability to start using the AI Editor without signing up; paid plans begin at $8/month billed annually.
Which file formats and input types does Isgen support?Users can paste text, upload PDF, DOCX, and DOC files individually or in batches, or scan a publicly accessible URL.
How accurate is Isgen?Isgen reports a 99.4% accuracy figure on its own benchmark study with a near-zero false positive rate, though the company itself recommends educators treat results as one input rather than a standalone verdict.
What happens to my data?Isgen states that it does not store user data or use it for model training, and paid users can delete their optional input history at any time.
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