Nemotron 3 Ultra 550BOpen

NVIDIA · released Jun 3, 2026

NVIDIA’s 550B open MoE built for enterprise reasoning pipelines.

text512K ctx550B (55B active MoE)

19.0

Podium Score

#495 of 673

1426

Arena Elo

96 on Arena

142 t/s

Output Speed

$2.75/M

Output Price

$0.6/M in

512K

Context Window

Scores by Source

#96 · 10.6k votes · ±7

Artificial Analysis ↗

Intelligence Index

Composite score

Category Scores

96.8

📜 Long Context

93.4

37.5

33.4

30.2

19.1

0.0

Benchmark Results

87%

86.8%

τ²-Bench Retail

83.3%

Ifbench

81.4%

67%

39.9%

Terminal-Bench Hard

36.4%

Humanity’s Last Exam

26.6%

Model Details

Release date	Jun 3, 2026
Parameters	550B (55B active MoE)
License	Open Weights
Context Window	512,000 tokens
Input Price	$0.6/M
Output Price	$2.75/M
Output Speed	142 t/s
Time to First Token	2 ms