Compare · 2026-10-14

GPT-5.5 vs Nvidia Nemotron 3 Ultra 550B A55b Nvfp4

As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.

CategoryGPT-5.5Nvidia Nemotron 3 Ultra 550B A55b Nvfp4
General LLM
#21 · Was SOTA · General LLM
Margin 14.285714285714292
LMArena leaderboard dataset · Oct 13, 2026
#83 · #83 in General LLM
Margin 56.46258503401361
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#25 · #25 in Reasoning
Margin 17.808219178082197
LMArena leaderboard dataset · Oct 13, 2026
#88 · #88 in Reasoning
Margin 60.95890410958904
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
#30 · #30 in Science
Margin —
Epoch AI benchmarking hub · Apr 23, 2026
—
Coding
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Coding › Web dev
#44 · #44 in Coding › Web dev
Margin 40.18691588785047
LMArena leaderboard dataset · Oct 13, 2026
—
Long context
#23 · Was SOTA · Long context
Margin 15.646258503401356
LMArena leaderboard dataset · Oct 13, 2026
#89 · #89 in Long context
Margin 60.54421768707483
LMArena leaderboard dataset · Oct 13, 2026
Vision
#10 · Was SOTA · Vision
Margin 28.94736842105263
Epoch AI benchmarking hub · Apr 23, 2026
—
Factuality
#5 · Was SOTA · Factuality
Margin 4.477611940298502
LMArena leaderboard dataset · Oct 13, 2026
#83 · #83 in Factuality
Margin 62.6865671641791
LMArena leaderboard dataset · Oct 13, 2026
Abstraction (ARC)
#7 · #7 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Apr 23, 2026
—
Price per 1M tokens

GPT-5.5: $11.25 per 1M blended tokens.

Nvidia Nemotron 3 Ultra 550B A55b Nvfp4: price per 1M tokens is unset in the catalog.

Open weights

GPT-5.5: closed weights.

Nvidia Nemotron 3 Ultra 550B A55b Nvfp4: open weights.

Which to pick

General LLM: As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in General LLM at #21 against #83.

Reasoning: As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Reasoning at #25 against #88.

Long context: As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Long context at #23 against #89.

Factuality: As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Factuality at #5 against #83.

GPT-5.5 · Nvidia Nemotron 3 Ultra 550B A55b Nvfp4

GPT-5.5 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4?

As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.

GPT-5.5 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for General LLM?

As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in General LLM at #21 against #83.

GPT-5.5 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for Reasoning?

As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Reasoning at #25 against #88.

GPT-5.5 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for Long context?

As of Oct 14, 2026, GPT-5.5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Long context at #23 against #89.