benchlm.ai

GPT-OSS 120B vs Nemotron 3 Ultra 500B

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

Quick Verdict

Nemotron 3 Ultra 500B wins overall with a score of 60 vs 42 (18 point difference).Nemotron 3 Ultra 500B wins 4 out of 4 categories.

GPT-OSS 120B

CreatorOpenAI
TypeOpen Weight
Context128K
Score42

Nemotron 3 Ultra 500B

CreatorNVIDIA
TypeOpen Weight
Context32K
Score60

Knowledge

Nemotron 3 Ultra 500B

GPT-OSS 120B

48.8

Nemotron 3 Ultra 500B

71.8

51
MMLU
74
50
GPQA
73
48
SuperGPQA
71
46
OpenBookQA
69

Coding

Nemotron 3 Ultra 500B

GPT-OSS 120B

43

Nemotron 3 Ultra 500B

66

43
HumanEval
66

Mathematics

Nemotron 3 Ultra 500B

GPT-OSS 120B

50

Nemotron 3 Ultra 500B

73

51
AIME 2023
74
53
AIME 2024
76
52
AIME 2025
75
47
HMMT Feb 2023
70
49
HMMT Feb 2024
72
48
HMMT Feb 2025
71
50
BRUMO 2025
73

Reasoning

Nemotron 3 Ultra 500B

GPT-OSS 120B

48

Nemotron 3 Ultra 500B

70

49
SimpleQA
71
47
MuSR
69

Frequently Asked Questions

Which is better, GPT-OSS 120B or Nemotron 3 Ultra 500B?

Nemotron 3 Ultra 500B scores higher overall with 60 vs 42, a difference of 18 points across all benchmarks.

Which is better for knowledge tasks, GPT-OSS 120B or Nemotron 3 Ultra 500B?

Nemotron 3 Ultra 500B leads in knowledge tasks with an average score of 71.8 vs 48.8.

Which is better for coding, GPT-OSS 120B or Nemotron 3 Ultra 500B?

Nemotron 3 Ultra 500B leads in coding with an average score of 66 vs 43.

Which is better for math, GPT-OSS 120B or Nemotron 3 Ultra 500B?

Nemotron 3 Ultra 500B leads in math with an average score of 73 vs 50.

Which is better for reasoning, GPT-OSS 120B or Nemotron 3 Ultra 500B?

Nemotron 3 Ultra 500B leads in reasoning with an average score of 70 vs 48.

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