GPT-OSS 20B vs Llama 4 Scout

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

Quick Verdict

Llama 4 Scout wins overall with a score of 38 vs 22 (16 point difference).Llama 4 Scout wins 4 out of 4 categories.

Knowledge

Llama 4 Scout

GPT-OSS 20B

28.8

Llama 4 Scout

44.8

31
MMLU
47
30
GPQA
46
28
SuperGPQA
44
26
OpenBookQA
42

Coding

Llama 4 Scout

GPT-OSS 20B

23

Llama 4 Scout

39

23
HumanEval
39

Mathematics

Llama 4 Scout

GPT-OSS 20B

30

Llama 4 Scout

46

31
AIME 2023
47
33
AIME 2024
49
32
AIME 2025
48
27
HMMT Feb 2023
43
29
HMMT Feb 2024
45
28
HMMT Feb 2025
44
30
BRUMO 2025
46

Reasoning

Llama 4 Scout

GPT-OSS 20B

28

Llama 4 Scout

44

29
SimpleQA
45
27
MuSR
43

Frequently Asked Questions

Which is better, GPT-OSS 20B or Llama 4 Scout?

Llama 4 Scout scores higher overall with 38 vs 22, a difference of 16 points across all benchmarks.

Which is better for knowledge tasks, GPT-OSS 20B or Llama 4 Scout?

Llama 4 Scout leads in knowledge tasks with an average score of 44.8 vs 28.8.

Which is better for coding, GPT-OSS 20B or Llama 4 Scout?

Llama 4 Scout leads in coding with an average score of 39 vs 23.

Which is better for math, GPT-OSS 20B or Llama 4 Scout?

Llama 4 Scout leads in math with an average score of 46 vs 30.

Which is better for reasoning, GPT-OSS 20B or Llama 4 Scout?

Llama 4 Scout leads in reasoning with an average score of 44 vs 28.