About
AI Detector is a web-based tool designed to identify AI-generated text from leading large language models including ChatGPT, GPT-4, Claude, Gemini, and other popular generative AI systems. Users paste or upload text and receive an instant analysis showing the likelihood that the content was written by an AI, along with sentence-level highlighting to pinpoint suspicious passages. The tool is commonly used by educators checking student submissions for academic integrity, content managers verifying that published material is human-written, SEO professionals ensuring content meets search engine guidelines, and publishers screening freelance work. It supports a range of document lengths and provides a confidence score or percentage breakdown of AI vs. human authorship. AI Detector offers a free tier for basic checks and paid plans for higher word-count limits, API access, and bulk processing. It positions itself as a fast, accurate first-pass screening tool requiring no account for basic usage, making it accessible to individuals and teams alike.
Key Features
- Multi-Model Detection: Detects AI-generated text from a wide range of models including ChatGPT, GPT-4, Claude, Gemini, and other popular LLMs in a single scan.
- Sentence-Level Highlighting: Highlights individual sentences or passages most likely to be AI-generated, giving users granular insight rather than just an overall score.
- Instant Confidence Scoring: Returns a percentage-based confidence score indicating the probability that submitted text was written by an AI versus a human.
- No-Account Free Tier: Basic AI detection checks are available without registration, lowering the barrier for one-off or infrequent users.
- API Access: Paid plans include API access, enabling developers and businesses to integrate AI content detection into their own platforms and workflows.
Pros
- Broad Model Coverage: Supports detection across the most widely used AI writing tools, reducing the need for multiple specialized detectors.
- Fast and Accessible: Provides near-instant results directly in the browser with no setup required for basic usage, making it practical for quick checks.
- Actionable Output: Sentence-level highlighting makes it easy to identify exactly which parts of a document are flagged, rather than relying on a single aggregate score.
- Free Entry Point: The free tier allows users to evaluate accuracy and usability before committing to a paid plan.
Cons
- False Positive Risk: Like all AI detectors, it can incorrectly flag human-written text as AI-generated, particularly for structured or formal writing styles.
- Word-Count Limits on Free Tier: The free plan restricts the amount of text that can be checked per submission or per day, limiting usefulness for high-volume users.
- Detection Arms Race: As AI models and paraphrasing tools evolve, detection accuracy may degrade over time without continuous model updates.
