An AI Detector is a tool designed to identify content generated by artificial intelligence. It analyzes text, images, or audio for patterns and artifacts that are characteristic of AI models like LLMs or generative image models. For text, it looks at perplexity and burstiness; for images, it might look for specific digital fingerprints. These tools are essential for maintaining authenticity and combating misuse of AI, such as in academic dishonesty or the creation of deepfakes, helping to distinguish between human and machine-generated work.