AIorNot

AI or Not is an online AI detector that helps you figure out whether a piece of content was created by a human or generated by artificial intelligence. Paste in any text and within seconds you get a clear AI-probability score for writing produced by ChatGPT, Claude, Gemini, GPT-4, and other popular large language models — no installation needed, and you can try it for free right in your browser before committing to a plan.

What sets AI or Not apart from a typical one-number checker is its sentence-level analysis. Instead of a single overall verdict, the detector scores your text line by line and color-codes each sentence, so you can see exactly which passages read as AI-written, which look human, and which fall somewhere in between. This makes it far more actionable for real-world use: teachers reviewing student essays, editors screening freelance submissions, hiring managers checking cover letters, SEO teams auditing outsourced articles, and publishers protecting the credibility of their content can all pinpoint the specific sections that need a closer look rather than guessing from one aggregate score.

Beyond text, AI or Not is a full multi-modal detection suite. Dedicated tools let you upload an image to check whether a photo was AI-generated, scan a video clip for AI-generated footage and deepfakes, analyze audio to tell whether a voice is a real person or a synthetic clone, and even test whether a song or music track was produced by AI. As generative models spread across every media format, having one place to verify text, images, video, voice, and music saves time and reduces the risk of being misled by fabricated content.

Getting started is easy: the free trial lets you run your first checks with thousands of characters per scan, so you can judge the results on your own content before upgrading. Creating an account unlocks higher daily limits and keeps a searchable history of every check you run, which is useful for teams that need an audit trail. From there, credit-based plans scale smoothly from individual writers up to agencies and institutions processing large volumes of content every day, so you only pay for the detection volume you actually use.

AI or Not is honest about how detection works: results are probabilistic signals, not absolute proof, and the site presents scores with clear confidence levels and guidance on interpretation rather than overpromising. The interface is fast, clean, and mobile-friendly, runs on a modern edge network for low latency worldwide, and is available in English, Spanish, and Chinese.