GPT-OSS 20B vs Nemotron 3 Nano 30B

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

Quick Verdict

Nemotron 3 Nano 30B wins overall with a score of 47 vs 22 (25 point difference).Nemotron 3 Nano 30B wins 4 out of 4 categories.

Knowledge

Nemotron 3 Nano 30B

GPT-OSS 20B

28.8

Nemotron 3 Nano 30B

54.8

31
MMLU
57
30
GPQA
56
28
SuperGPQA
54
26
OpenBookQA
52

Coding

Nemotron 3 Nano 30B

GPT-OSS 20B

23

Nemotron 3 Nano 30B

49

23
HumanEval
49

Mathematics

Nemotron 3 Nano 30B

GPT-OSS 20B

30

Nemotron 3 Nano 30B

56

31
AIME 2023
57
33
AIME 2024
59
32
AIME 2025
58
27
HMMT Feb 2023
53
29
HMMT Feb 2024
55
28
HMMT Feb 2025
54
30
BRUMO 2025
56

Reasoning

Nemotron 3 Nano 30B

GPT-OSS 20B

28

Nemotron 3 Nano 30B

53

29
SimpleQA
54
27
MuSR
52

Frequently Asked Questions

Which is better, GPT-OSS 20B or Nemotron 3 Nano 30B?

Nemotron 3 Nano 30B scores higher overall with 47 vs 22, a difference of 25 points across all benchmarks.

Which is better for knowledge tasks, GPT-OSS 20B or Nemotron 3 Nano 30B?

Nemotron 3 Nano 30B leads in knowledge tasks with an average score of 54.8 vs 28.8.

Which is better for coding, GPT-OSS 20B or Nemotron 3 Nano 30B?

Nemotron 3 Nano 30B leads in coding with an average score of 49 vs 23.

Which is better for math, GPT-OSS 20B or Nemotron 3 Nano 30B?

Nemotron 3 Nano 30B leads in math with an average score of 56 vs 30.

Which is better for reasoning, GPT-OSS 20B or Nemotron 3 Nano 30B?

Nemotron 3 Nano 30B leads in reasoning with an average score of 53 vs 28.