Nemotron Ultra 253B vs o3-pro

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

Quick Verdict

o3-pro wins overall with a score of 68 vs 40 (28 point difference).o3-pro wins 4 out of 4 categories.

Knowledge

o3-pro

Nemotron Ultra 253B

46.8

o3-pro

87.3

49
MMLU
88
48
GPQA
89
46
SuperGPQA
87
44
OpenBookQA
85

Coding

o3-pro

Nemotron Ultra 253B

41

o3-pro

80

41
HumanEval
80

Mathematics

o3-pro

Nemotron Ultra 253B

48

o3-pro

89

49
AIME 2023
90
51
AIME 2024
92
50
AIME 2025
91
45
HMMT Feb 2023
86
47
HMMT Feb 2024
88
46
HMMT Feb 2025
87
48
BRUMO 2025
89

Reasoning

o3-pro

Nemotron Ultra 253B

46

o3-pro

85

47
SimpleQA
86
45
MuSR
84

Frequently Asked Questions

Which is better, Nemotron Ultra 253B or o3-pro?

o3-pro scores higher overall with 68 vs 40, a difference of 28 points across all benchmarks.

Which is better for knowledge tasks, Nemotron Ultra 253B or o3-pro?

o3-pro leads in knowledge tasks with an average score of 87.3 vs 46.8.

Which is better for coding, Nemotron Ultra 253B or o3-pro?

o3-pro leads in coding with an average score of 80 vs 41.

Which is better for math, Nemotron Ultra 253B or o3-pro?

o3-pro leads in math with an average score of 89 vs 48.

Which is better for reasoning, Nemotron Ultra 253B or o3-pro?

o3-pro leads in reasoning with an average score of 85 vs 46.