benchlm.ai

GPT-OSS 20B vs Mistral 7B v0.3

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

Quick Verdict

GPT-OSS 20B wins overall with a score of 22 vs 21 (1 point difference).GPT-OSS 20B wins 4 out of 4 categories.

GPT-OSS 20B

CreatorOpenAI
TypeOpen Weight
Context128K
Score22

Mistral 7B v0.3

CreatorMistral
TypeOpen Weight
Context32K
Score21

Knowledge

GPT-OSS 20B

GPT-OSS 20B

28.8

Mistral 7B v0.3

27.8

31
MMLU
30
30
GPQA
29
28
SuperGPQA
27
26
OpenBookQA
25

Coding

GPT-OSS 20B

GPT-OSS 20B

23

Mistral 7B v0.3

22

23
HumanEval
22

Mathematics

GPT-OSS 20B

GPT-OSS 20B

30

Mistral 7B v0.3

29

31
AIME 2023
30
33
AIME 2024
32
32
AIME 2025
31
27
HMMT Feb 2023
26
29
HMMT Feb 2024
28
28
HMMT Feb 2025
27
30
BRUMO 2025
29

Reasoning

GPT-OSS 20B

GPT-OSS 20B

28

Mistral 7B v0.3

27

29
SimpleQA
28
27
MuSR
26

Frequently Asked Questions

Which is better, GPT-OSS 20B or Mistral 7B v0.3?

GPT-OSS 20B scores higher overall with 22 vs 21, a difference of 1 points across all benchmarks.

Which is better for knowledge tasks, GPT-OSS 20B or Mistral 7B v0.3?

GPT-OSS 20B leads in knowledge tasks with an average score of 28.8 vs 27.8.

Which is better for coding, GPT-OSS 20B or Mistral 7B v0.3?

GPT-OSS 20B leads in coding with an average score of 23 vs 22.

Which is better for math, GPT-OSS 20B or Mistral 7B v0.3?

GPT-OSS 20B leads in math with an average score of 30 vs 29.

Which is better for reasoning, GPT-OSS 20B or Mistral 7B v0.3?

GPT-OSS 20B leads in reasoning with an average score of 28 vs 27.

Related Comparisons

GPT-OSS 20B vs GPT-5.4GPT-OSS 20B vs Gemini 3.1 ProGPT-OSS 20B vs Claude Opus 4.6GPT-OSS 20B vs GPT-5.3 CodexGPT-OSS 20B vs Grok 4.1GPT-OSS 20B vs GPT-5.2