Rayyan is an AI-powered platform. According to Getting Started with Rayyan,
"Rayyan uses artificial intelligence, machine learning, and natural language processing to understand language, learn from decisions, and help research teams reduce the time it takes to complete their systematic reviews and literature reviews."
Rayyan uses artificial intelligence and text mining techniques to recognize patterns in the screening process, learning from your decisions to sort articles. You make all screening decisions.
It is best practice to document the platforms and tools used for your review. Rayyan's AI functionality does not make any decisions in the screening process, but does recognize patterns to rank articles by relevance which could impact confirmation bias.
Birmingham City University Library. Artificial Intelligence (AI) and the literature review process: Screening. libguides.bcu.ac.uk/generativeAI/screening