Nemotron 30B fine-tuned on Palantir's Ontology beats a model 18x its size

BrettKrieger12 · x · 2026-10-22

Palantir case data shows NVIDIA Nemotron models post-trained on its Ontology deliver staggering gains. In RFI classification, a fine-tuned Nemotron 3 Nano 4B hit 73.5% balanced accuracy at $0.1/1M tokens, beating Claude Sonnet 5.5 (66%) and GPT-6 Astra (62.5% at $20/1M); untuned it was only 53%. In Tampa General Hospital healthcare decision models, fine-tuned Nemotron 3.5 Lightning 30B reached 95.7% exact accuracy at 58ms latency, beating Claude Opus 5.5 (88.6%, 1,627ms) — a 30B model outperforming one 18x its size at a fraction of the cost and latency.

Related event: Palantir's Fine-Tuned Nemotron Beats Frontier Models at 1/20th the Cost(3 posts)→

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