benchlm.ai

GPT-OSS 20B vs Nova Pro

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

Quick Verdict

Nova Pro wins overall with a score of 32 vs 22 (10 point difference).Nova Pro wins 4 out of 4 categories.

GPT-OSS 20B

CreatorOpenAI
TypeOpen Weight
Context128K
Score22

Nova Pro

CreatorNova AI
TypeProprietary
Context128K
Score32

Knowledge

Nova Pro

GPT-OSS 20B

28.8

Nova Pro

38.8

31
MMLU
41
30
GPQA
40
28
SuperGPQA
38
26
OpenBookQA
36

Coding

Nova Pro

GPT-OSS 20B

23

Nova Pro

33

23
HumanEval
33

Mathematics

Nova Pro

GPT-OSS 20B

30

Nova Pro

40

31
AIME 2023
41
33
AIME 2024
43
32
AIME 2025
42
27
HMMT Feb 2023
37
29
HMMT Feb 2024
39
28
HMMT Feb 2025
38
30
BRUMO 2025
40

Reasoning

Nova Pro

GPT-OSS 20B

28

Nova Pro

38

29
SimpleQA
39
27
MuSR
37

Frequently Asked Questions

Which is better, GPT-OSS 20B or Nova Pro?

Nova Pro scores higher overall with 32 vs 22, a difference of 10 points across all benchmarks.

Which is better for knowledge tasks, GPT-OSS 20B or Nova Pro?

Nova Pro leads in knowledge tasks with an average score of 38.8 vs 28.8.

Which is better for coding, GPT-OSS 20B or Nova Pro?

Nova Pro leads in coding with an average score of 33 vs 23.

Which is better for math, GPT-OSS 20B or Nova Pro?

Nova Pro leads in math with an average score of 40 vs 30.

Which is better for reasoning, GPT-OSS 20B or Nova Pro?

Nova Pro leads in reasoning with an average score of 38 vs 28.

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