Mistral 8x7B v0.2 vs GPT-5 nano

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

Mistral 8x7B v0.2 has the cleaner overall profile here, landing at 33 versus 31. It is a real lead, but still close enough that category-level strengths matter more than the headline number.

GPT-5 nano is the reasoning model in the pair, while Mistral 8x7B v0.2 is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. GPT-5 nano gives you the larger context window at 400K, compared with 32K for Mistral 8x7B v0.2.

Quick Verdict

Pick Mistral 8x7B v0.2 if you want the stronger benchmark profile. GPT-5 nano only becomes the better choice if mathematics is the priority or you need the larger 400K context window.

Knowledge

GPT-5 nano

Mistral 8x7B v0.2

27

GPT-5 nano

71.2

29
MMLU
-
28
GPQA
71.2
26
SuperGPQA
-
24
OpenBookQA
-
52
MMLU-Pro
-
3
HLE
-

Coding

Mistral 8x7B v0.2
21
HumanEval
-
16
SWE-bench Verified
-
12
LiveCodeBench
-

Mathematics

GPT-5 nano

Mistral 8x7B v0.2

31.9

GPT-5 nano

85.2

29
AIME 2023
-
31
AIME 2024
-
30
AIME 2025
85.2
25
HMMT Feb 2023
-
27
HMMT Feb 2024
-
26
HMMT Feb 2025
-
28
BRUMO 2025
-
59
MATH-500
-

Reasoning

Mistral 8x7B v0.2
27
SimpleQA
-
25
MuSR
-
62
BBH
-

Instruction Following

Mistral 8x7B v0.2
67
IFEval
-

Multilingual

Mistral 8x7B v0.2
62
MGSM
-

Frequently Asked Questions

Which is better, Mistral 8x7B v0.2 or GPT-5 nano?

Mistral 8x7B v0.2 is ahead overall, 33 to 31. The biggest single separator in this matchup is AIME 2025, where the scores are 30 and 85.2.

Which is better for knowledge tasks, Mistral 8x7B v0.2 or GPT-5 nano?

GPT-5 nano has the edge for knowledge tasks in this comparison, averaging 71.2 versus 27. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for math, Mistral 8x7B v0.2 or GPT-5 nano?

GPT-5 nano has the edge for math in this comparison, averaging 85.2 versus 31.9. Inside this category, AIME 2025 is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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