Kimi K3 vs Nvidia Nemotron 3 Ultra 550B A55b Nvfp4
As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Kimi K3
Yes. Yes on General LLM (open weights); Reasoning (open weights). Not the overall leader.
Nvidia Nemotron 3 Ultra 550B A55b Nvfp4
#105 Best current rank: #105 in Factuality, as of Oct 15, 2026.
| Category | Kimi K3 | Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 |
|---|---|---|
| General LLM | #13 · #13 in General LLM Margin 6.914893617021278 LMArena leaderboard dataset · Oct 13, 2026 | #110 · #110 in General LLM Margin 58.51063829787234 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #7 · #7 in Reasoning Margin 4.255319148936167 LMArena leaderboard dataset · Oct 13, 2026 | #114 · #114 in Reasoning Margin 61.170212765957444 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #17 · #17 in Science Margin — Epoch AI benchmarking hub · Jul 16, 2026 | — |
| Coding | #— · Not enough data Margin — Scale Labs leaderboards · Oct 14, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #12 · Was SOTA · Coding › Web dev Margin 8.799999999999997 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #8 · Was SOTA · Long context Margin 4.255319148936167 LMArena leaderboard dataset · Oct 13, 2026 | #114 · #114 in Long context Margin 60.638297872340424 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #22 · #22 in Vision Margin 60.526315789473685 Epoch AI benchmarking hub · Jul 16, 2026 | — |
| Factuality | #22 · #22 in Factuality Margin 13.372093023255815 LMArena leaderboard dataset · Oct 13, 2026 | #105 · #105 in Factuality Margin 61.627906976744185 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #8 · #8 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 16, 2026 | — |
Kimi K3: $4.109999999999999 per 1M blended tokens.
Nvidia Nemotron 3 Ultra 550B A55b Nvfp4: price per 1M tokens is unset in the catalog.
Kimi K3: open weights.
Nvidia Nemotron 3 Ultra 550B A55b Nvfp4: open weights.
General LLM: As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in General LLM at #13 against #110.
Reasoning: As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Reasoning at #7 against #114.
Long context: As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Long context at #8 against #114.
Factuality: As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Factuality at #22 against #105.
Kimi K3 · Nvidia Nemotron 3 Ultra 550B A55b Nvfp4
Kimi K3 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4?
As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Kimi K3 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for General LLM?
As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in General LLM at #13 against #110.
Kimi K3 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for Reasoning?
As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Reasoning at #7 against #114.
Kimi K3 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for Long context?
As of Oct 15, 2026, Kimi K3 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Long context at #8 against #114.