Which model leads IFBench (prompt)?

Q: Which model leads IFBench (prompt)?

Nemotron 3 Ultra 550B A55B tops the board at 82.3

IFBench (prompt) Leaderboard — 6 Models Ranked

Pro Mode — raw scores, one benchmark under the lensofficial card harness

The field · 6 measured

71.982.3

6 models measured, most on the official card harness. Nemotron 3 Ultra 550B A55B tops the board at 82.3.

6 measured·Lifecycle Updated Oct 9, 2026Score basis

#◆Vendor$/M in$/M out

Leader — ignites whiteField — fill cools with scoreIndependently verified only0 of 6Bars show 71.9–82.3 · ◆ solid = first-party or better · outlined = arm's-length

01Nemotron 3 Ultra 550B A55BNVIDIA82.3$0.60/M$2.5/M$0.019

02Granite 4.2 8B+1 altIBM79.33$0.06/M$0.25/M$0.002

03Granite 4.2 30BIBM77.17$0.16/M$0.65/M$0.005

04Granite 4.2 3B+1 altIBM74.33$0.03/M$0.12/M$0.001

05Nemotron 3 Super 120B A12BNVIDIA73.43P$0.30/M$0.90/M$0.008

06NVIDIA-Nemotron-Labs-3-Puzzle-75B-A9B-BF16NVIDIA71.93P———

◆ solid = independently verified · aggregator attested · vendor attributed — outlined = cross-reference · source-attributed. Dimmed ◆ = confidence inferred. “+N alts” = alternate disclosures in the drawer with why-demoted. Prices per million tokens; $/point = input price ÷ score. Every row opens its model dossier.

Verification: 6 models scored · 0 independently verified · 6 vendor-reported · 0 with source disagreement. How these tiers are assigned