GPT-5.1 vs Nemotron 3 Ultra 500B

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

Quick Verdict

GPT-5.1 wins overall with a score of 76 vs 60 (16 point difference).GPT-5.1 wins 4 out of 4 categories.

Knowledge

GPT-5.1

GPT-5.1

94

Nemotron 3 Ultra 500B

71.8

97
MMLU
74
95
GPQA
73
93
SuperGPQA
71
91
OpenBookQA
69

Coding

GPT-5.1

GPT-5.1

89

Nemotron 3 Ultra 500B

66

89
HumanEval
66

Mathematics

GPT-5.1

GPT-5.1

97.1

Nemotron 3 Ultra 500B

73

99
AIME 2023
74
99
AIME 2024
76
98
AIME 2025
75
95
HMMT Feb 2023
70
97
HMMT Feb 2024
72
96
HMMT Feb 2025
71
96
BRUMO 2025
73

Reasoning

GPT-5.1

GPT-5.1

92

Nemotron 3 Ultra 500B

70

93
SimpleQA
71
91
MuSR
69

Frequently Asked Questions

Which is better, GPT-5.1 or Nemotron 3 Ultra 500B?

GPT-5.1 scores higher overall with 76 vs 60, a difference of 16 points across all benchmarks.

Which is better for knowledge tasks, GPT-5.1 or Nemotron 3 Ultra 500B?

GPT-5.1 leads in knowledge tasks with an average score of 94 vs 71.8.

Which is better for coding, GPT-5.1 or Nemotron 3 Ultra 500B?

GPT-5.1 leads in coding with an average score of 89 vs 66.

Which is better for math, GPT-5.1 or Nemotron 3 Ultra 500B?

GPT-5.1 leads in math with an average score of 97.1 vs 73.

Which is better for reasoning, GPT-5.1 or Nemotron 3 Ultra 500B?

GPT-5.1 leads in reasoning with an average score of 92 vs 70.