Glass Health is an AI clinical decision support platform that assists physicians with differential diagnosis generation, treatment planning, and clinical reasoning. Describe a patient presentation, and Glass suggests differentials ranked by likelihood, with supporting evidence for each. It functions as a knowledgeable thinking partner for complex cases. The tool draws from clinical literature and structured medical knowledge to produce suggestions grounded in evidence rather than pattern-matched text. It explicitly surfaces its reasoning and uncertainty, which is critical for clinical use where overconfident AI recommendations are dangerous. For clinicians dealing with complex presentations, rare conditions, or high-stakes decisions where an additional perspective reduces cognitive load, Glass provides a form of AI clinical support that respects the physician's final judgment.