RFT boosted o3-mini to 57% F1 on medical coding versus clinicians' 40%
Brendan Fortuna · ⚡️Using RFT to Build Clinical Superintelligence · Jul 29, 2025 · at 12:03
Brendan Fortuna, Head of Engineering at Ambience AI, shares evaluation benchmark results comparing human clinicians against an OpenAI o3-mini model trained via reinforcement fine-tuning (RFT).
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“And the clinicians using F-one score were scoring like, let's say around 40%, right, on the F-one score, which was surprisingly low, lower than we thought. We were able to use RFT to kind of hill climb and get that, you know, get a small model O-three mini up to around like 57%.”
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