NVIDIA
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Listed June 2026
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Open Weights
Nemotron 3 Ultra (550B A55B)
Arena #120 • score 1426 ±7
Open Weights model from NVIDIA, listed June 2026. Arena text score 1426 (#120 of 414 entries). $0.60 input / $2.40 output per 1M tokens. 256K tokens context.
Parameters
550B total, 55B active (MoE)
Context Window
256K tokens
Input / 1M tokens
$0.60
Output / 1M tokens
$2.40
Benchmark Results
- Arena Text Elo: 1426 (#120 of 414 on arena.ai · ±7 · 11,571 votes · variant: nvidia-nemotron-3-ultra-550b-a55b-nvfp4)
- AA Intelligence Index: 22.9 (Artificial Analysis v4.3 · best setting: Nemotron 3 Ultra 550B A55B (Reasoning) · checked 2026-10-11)
- AA Coding Index: 49.3 (Artificial Analysis v4.3 · best setting: Nemotron 3 Ultra 550B A55B (Reasoning) · checked 2026-10-11)
- AA Agentic Index: 20.1 (Artificial Analysis v4.3 · best setting: Nemotron 3 Ultra 550B A55B (Reasoning) · checked 2026-10-11)