Purpose
Isgen is an AI content detection tool that mainly helps users determine whether a piece of text was written by a human or an AI model. It claims to detect text generated by OpenAI's GPT-5, ChatGPT, Claude, Gemini, Deepseek, and other open-source models. It is used by educators to maintain academic integrity, and is also suitable for content creators, journalists, professional writers, business and legal professionals, as well as students and researchers who want to self-check whether their work contains AI-generated content before submitting it.
Main Capabilities
- AI Detection: Performs an overall analysis of the entire text, then a second analysis sentence by sentence and phrase by phrase, providing percentages for AI, human, and mixed proportions.
- Detailed Analysis: Provides sentence-level and phrase-level insights, using color highlighting to mark parts written by AI, mixed, or human; each flagged sentence has its own AI impact score, making it easy for users to understand which parts are driving up the overall AI score.
- Multilingual Support: Supports more than 80 languages and says it is still adding more languages.
- Plagiarism Check: Includes a built-in free plagiarism checker to help verify content originality.
- Grammar Check: Provides a free AI grammar check and proofreading tool that can identify and correct writing errors such as grammar, spelling, and punctuation.
- AI Editor: Integrates writing, editing, proofreading, AI detection, and rewriting (Humanizer). As users draft and revise in the editor, the AI score can update in real time, and stiff-sounding content can be rewritten.
- Report Generation: Generates detailed reports based on detection results, presenting insights related to content integrity.
- Other Tools: Provides additional features such as an AI Citation Generator.
How to Use
- Paste or upload text: Place the content into the detection box, or upload single/batch files, and select one of the more than 80 supported languages.
- Scan AI content: Click "Detect AI Content"; the system first scans the text as a whole, then performs a second analysis sentence by sentence and phrase by phrase, providing results within seconds.
- View results: In the "Summary" section, view the overall AI detection score and the percentages for Human, AI, and Mixed; switch to "Detailed Analysis" to view sentence analysis and phrase analysis, and to view the AI impact of each flagged sentencepoints. In addition, the official website states that you can directly use the AI editor to view the AI score in real time and rewrite content during the writing process.
Use cases
- Students, researchers, and scholars: Check for unintentional traces of AI use before submitting papers or research, and confirm that the work reads as if they wrote it themselves.
- Educators and academic institutions: Use the detailed analysis feature to gain fine-grained insights so they can make fair, evidence-based judgments about student work.
- Content creators and journalists: Scan articles, posts, and edited content to confirm originality before publication and protect authorial authority and editorial reputation.
- Professional writers and authors: Detect manuscripts, white papers, and marketing copy to confirm that the content will not be flagged as AI-generated.
- Business and legal professionals: Provide a verification layer for high-stakes content where authenticity cannot be compromised.
Limitations and cautions
- Accuracy is not 100%: The official website clearly states that AI detectors, including Isgen, are not 100% accurate and that false positives are possible. When results are unclear, Isgen's algorithm defaults to classifying text as human-written in order to minimize the risk of false positives that could unfairly affect students' academic records.
- Detection of combined content: It can detect content generated by a mix of humans and AI, but content that students wrote based on AI-suggested structures may still be flagged as AI even if most of it was completed by the student. The official website recommends allowing students to explain their AI use.
- Recommendations on teacher penalties: The official website does not recommend that educators punish students based solely on detection results; if a false positive occurs, detailed insights can be used to understand the high-impact score sections, and students can demonstrate their writing process through in-person assessment, showing their ideation process, editor version history, and other methods.
- Data storage: The FAQ mentions data storage issues, but does not provide specific policy details, and no clear explanation is currently provided.
- Free and paid plans: The official website has a free entry point and multiple paid plans. The paid plans include different benefits such as an advanced AI detector, an advanced plagiarism checker, phrase-level detailed analysis, monthly detection word count, daily API call limits, batch file upload, document history, and AI Humanizer, but the specific prices, complete quotas for each tier, and limitations need to be checked on the official website, and the materials do not provide them in full.
