CS1: A 4B-Parameter Clinical Decision Model Trained on 3.6M Patients Released

AI4Pathology released Clinical System One (CS1), a compact 4-billion-parameter general decision model for clinical records trained on 3.6 million patients, outperforming open-source peers and accompanied by a pathology benchmark for community testing.

2026-10-21 ~ 2026-10-22 · 3 related posts

• CS1: a 4B clinical decision model trained on 12.4M questions beats open rivals — AI4Pathology · 2026-10-21
• CS1: 4B Medical Decision Model Trained on 3.6M Patients Beats Open Rivals — AI4Pathology · 2026-10-22
• CS1: a general-purpose medical decision model debuts, pathologists line up to benchmark it — DrDatta_AIIMS · 2026-10-22