benchlm.ai

Grok 4.1 Fast vs Nemotron 3 Ultra 500B

Side-by-side benchmark comparison across knowledge, coding, math, and reasoning.

Quick Verdict

Grok 4.1 Fast wins overall with a score of 73 vs 60 (13 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

Grok 4.1 Fast

CreatorxAI
TypeProprietary
Context2M
Score73

Nemotron 3 Ultra 500B

CreatorNVIDIA
TypeOpen Weight
Context32K
Score60

Knowledge

Grok 4.1 Fast

Grok 4.1 Fast

91

Nemotron 3 Ultra 500B

71.8

94
MMLU
74
92
GPQA
73
90
SuperGPQA
71
88
OpenBookQA
69

Coding

Grok 4.1 Fast

Grok 4.1 Fast

86

Nemotron 3 Ultra 500B

66

86
HumanEval
66

Mathematics

Grok 4.1 Fast

Grok 4.1 Fast

95

Nemotron 3 Ultra 500B

73

96
AIME 2023
74
98
AIME 2024
76
97
AIME 2025
75
92
HMMT Feb 2023
70
94
HMMT Feb 2024
72
93
HMMT Feb 2025
71
95
BRUMO 2025
73

Reasoning

Grok 4.1 Fast

Grok 4.1 Fast

89

Nemotron 3 Ultra 500B

70

90
SimpleQA
71
88
MuSR
69

Frequently Asked Questions

Which is better, Grok 4.1 Fast or Nemotron 3 Ultra 500B?

Grok 4.1 Fast scores higher overall with 73 vs 60, a difference of 13 points across all benchmarks.

Which is better for knowledge tasks, Grok 4.1 Fast or Nemotron 3 Ultra 500B?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 71.8.

Which is better for coding, Grok 4.1 Fast or Nemotron 3 Ultra 500B?

Grok 4.1 Fast leads in coding with an average score of 86 vs 66.

Which is better for math, Grok 4.1 Fast or Nemotron 3 Ultra 500B?

Grok 4.1 Fast leads in math with an average score of 95 vs 73.

Which is better for reasoning, Grok 4.1 Fast or Nemotron 3 Ultra 500B?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 70.

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