
Paging Dr. Model: When AI Runs the Workup
What if the AI didn’t just answer a question—it ordered the right tests, asked for the right observations, and stopped when it had enough to call the case? A new paper introduces DxDirector-7B, a 7B-parameter medical LLM trained to act as the director of care, not the assistant. Instead of waiting for a physician to assemble clean inputs, the model starts from the patient’s vague chief complaint (e.g., “tummy pain and tired”) and then plans the diagnostic pathway, requesting only those clinician actions that software cannot perform (physical exams, labs, imaging). The goal is twofold: maximize diagnostic accuracy and minimize human workload. ...