benchlm.ai

Grok 4.1 Fast vs Nemotron-4 15B

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 45 (28 point difference).Grok 4.1 Fast wins 4 out of 4 categories.

Grok 4.1 Fast

CreatorxAI
TypeProprietary
Context2M
Score73

Nemotron-4 15B

CreatorNVIDIA
TypeOpen Weight
Context32K
Score45

Knowledge

Grok 4.1 Fast

Grok 4.1 Fast

91

Nemotron-4 15B

51.8

94
MMLU
54
92
GPQA
53
90
SuperGPQA
51
88
OpenBookQA
49

Coding

Grok 4.1 Fast

Grok 4.1 Fast

86

Nemotron-4 15B

46

86
HumanEval
46

Mathematics

Grok 4.1 Fast

Grok 4.1 Fast

95

Nemotron-4 15B

53

96
AIME 2023
54
98
AIME 2024
56
97
AIME 2025
55
92
HMMT Feb 2023
50
94
HMMT Feb 2024
52
93
HMMT Feb 2025
51
95
BRUMO 2025
53

Reasoning

Grok 4.1 Fast

Grok 4.1 Fast

89

Nemotron-4 15B

51

90
SimpleQA
52
88
MuSR
50

Frequently Asked Questions

Which is better, Grok 4.1 Fast or Nemotron-4 15B?

Grok 4.1 Fast scores higher overall with 73 vs 45, a difference of 28 points across all benchmarks.

Which is better for knowledge tasks, Grok 4.1 Fast or Nemotron-4 15B?

Grok 4.1 Fast leads in knowledge tasks with an average score of 91 vs 51.8.

Which is better for coding, Grok 4.1 Fast or Nemotron-4 15B?

Grok 4.1 Fast leads in coding with an average score of 86 vs 46.

Which is better for math, Grok 4.1 Fast or Nemotron-4 15B?

Grok 4.1 Fast leads in math with an average score of 95 vs 53.

Which is better for reasoning, Grok 4.1 Fast or Nemotron-4 15B?

Grok 4.1 Fast leads in reasoning with an average score of 89 vs 51.

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