Today we are releasing the OpenEvidence Model Family. Our most powerful models yet, and (as of 2026) the highest scoring medical AI model family in the world on every mainstream benchmark. Osler for the hallway, Sackett for the consult, Snow for the tumor board. Every model in the family is held to the same standard of clinical accuracy. What varies is time: how long a model thinks, and how deep it searches. Three of them are available to every verified clinician starting now. The fourth is Darwin. A perfect 100% on MedQA, the first AI in history to do it. Capability at that level cuts both ways in medicine, so Darwin is in research preview, by application only, while its safeguards are validated with partners like @RareDiseases. Osler, Sackett, and Snow are live now on the web and in the iOS and Android apps.