Legibi is an AI legibility platform for businesses seeking to understand whether AI systems select their brand in buyer decision scenarios. It runs real buyer questions through ChatGPT, Claude, Gemini, and Perplexity, then assesses four stages: whether a brand is retrieved, understood, corroborated, and selected. The platform focuses on selection rather than mention counts. Its workflow follows a Measure, Diagnose, Fix, and Re-measure loop, helping teams identify where their brand may drop out of an AI-assisted decision. Legibi offers modes for a company or an individual person and is designed for founders and small businesses. Users can examine the AI responses generated for relevant questions and use the stage-based results to consider what to improve before measuring again. The platform is intended to support brand visibility analysis across AI systems, rather than guarantee that any system will recommend a business.