Nemotron 3 Ultra 500B vs o1

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

Nemotron 3 Ultra 500B is clearly ahead on the aggregate, 67 to 51. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Nemotron 3 Ultra 500B's sharpest advantage is in coding, where it averages 49.7 against 41. The single biggest benchmark swing on the page is MMLU, 74 to 91.8. o1 does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.

Nemotron 3 Ultra 500B gives you the larger context window at 10M, compared with 200K for o1.

Quick Verdict

Pick Nemotron 3 Ultra 500B if you want the stronger benchmark profile. o1 only becomes the better choice if knowledge is the priority.

Knowledge

o1

Nemotron 3 Ultra 500B

62.5

o1

83.8

74
MMLU
91.8
73
GPQA
75.7
71
SuperGPQA
-
69
OpenBookQA
-
73
MMLU-Pro
-
15
HLE
-

Coding

Nemotron 3 Ultra 500B

Nemotron 3 Ultra 500B

49.7

o1

41

66
HumanEval
-
42
SWE-bench Verified
41
41
LiveCodeBench
-

Mathematics

Nemotron 3 Ultra 500B

Nemotron 3 Ultra 500B

74.4

o1

74.3

74
AIME 2023
-
76
AIME 2024
74.3
75
AIME 2025
-
70
HMMT Feb 2023
-
72
HMMT Feb 2024
-
71
HMMT Feb 2025
-
73
BRUMO 2025
-
84
MATH-500
-

Reasoning

Nemotron 3 Ultra 500B
71
SimpleQA
-
69
MuSR
-
85
BBH
-

Instruction Following

o1

Nemotron 3 Ultra 500B

84

o1

92.2

84
IFEval
92.2

Multilingual

Nemotron 3 Ultra 500B
81
MGSM
-

Frequently Asked Questions

Which is better, Nemotron 3 Ultra 500B or o1?

Nemotron 3 Ultra 500B is ahead overall, 67 to 51. The biggest single separator in this matchup is MMLU, where the scores are 74 and 91.8.

Which is better for knowledge tasks, Nemotron 3 Ultra 500B or o1?

o1 has the edge for knowledge tasks in this comparison, averaging 83.8 versus 62.5. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Nemotron 3 Ultra 500B or o1?

Nemotron 3 Ultra 500B has the edge for coding in this comparison, averaging 49.7 versus 41. Inside this category, SWE-bench Verified is the benchmark that creates the most daylight between them.

Which is better for math, Nemotron 3 Ultra 500B or o1?

Nemotron 3 Ultra 500B has the edge for math in this comparison, averaging 74.4 versus 74.3. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Which is better for instruction following, Nemotron 3 Ultra 500B or o1?

o1 has the edge for instruction following in this comparison, averaging 92.2 versus 84. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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