Compare · 2026-10-14

Claude Fable 5 vs Nvidia Nemotron 3 Ultra 550B A55b Nvfp4

As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.

CategoryClaude Fable 5Nvidia Nemotron 3 Ultra 550B A55b Nvfp4
General LLM
#3 · Near-SOTA · General LLM
Margin 2.040816326530617
LMArena leaderboard dataset · Oct 13, 2026
#83 · #83 in General LLM
Margin 56.46258503401361
LMArena leaderboard dataset · Oct 13, 2026
Reasoning
#3 · Near-SOTA · Reasoning
Margin 2.7397260273972535
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
#56 · #56 in Science
Margin —
Epoch AI benchmarking hub · Jun 9, 2026
—
Coding
#6 · #6 in Coding
Margin 31.818181818181813
Terminal-Bench Harbor Hub · Oct 6, 2026
#— · Not enough data
Margin —
LMArena leaderboard dataset · Oct 13, 2026
Coding › Agentic
#6 · #6 in Coding › Agentic
Margin 31.818181818181813
Terminal-Bench Harbor Hub · Oct 6, 2026
—
Coding › Web dev
#17 · Was SOTA · Coding › Web dev
Margin 14.953271028037378
LMArena leaderboard dataset · Oct 13, 2026
—
Long context
#3 · Near-SOTA · Long context
Margin 2.040816326530603
LMArena leaderboard dataset · Oct 13, 2026
#89 · #89 in Long context
Margin 60.54421768707483
LMArena leaderboard dataset · Oct 13, 2026
Vision
#5 · Was SOTA · Vision
Margin 15.78947368421052
Epoch AI benchmarking hub · Jun 9, 2026
—
Factuality
#7 · Was SOTA · Factuality
Margin 5.97014925373135
LMArena leaderboard dataset · Oct 13, 2026
#83 · #83 in Factuality
Margin 62.6865671641791
LMArena leaderboard dataset · Oct 13, 2026
Abstraction (ARC)
#1 · #1 in Abstraction (ARC)
Margin —
Epoch AI benchmarking hub · Jun 9, 2026
—
Price per 1M tokens

Claude Fable 5: $20 per 1M blended tokens.

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

Open weights

Claude Fable 5: closed weights.

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

Which to pick

General LLM: As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in General LLM at #3 against #83.

Reasoning: As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Reasoning at #3 against #88.

Long context: As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Long context at #3 against #89.

Factuality: As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Factuality at #7 against #83.

Claude Fable 5 · Nvidia Nemotron 3 Ultra 550B A55b Nvfp4

Claude Fable 5 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4?

As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.

Claude Fable 5 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for General LLM?

As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in General LLM at #3 against #83.

Claude Fable 5 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for Reasoning?

As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Reasoning at #3 against #88.

Claude Fable 5 or Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 for Long context?

As of Oct 14, 2026, Claude Fable 5 leads Nvidia Nemotron 3 Ultra 550B A55b Nvfp4 in Long context at #3 against #89.