benchlm.ai

GPT-OSS 120B vs MiMo-V2-Flash

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

Quick Verdict

MiMo-V2-Flash wins overall with a score of 63 vs 42 (21 point difference).MiMo-V2-Flash wins 4 out of 4 categories.

GPT-OSS 120B

CreatorOpenAI
TypeOpen Weight
Context128K
Score42

MiMo-V2-Flash

CreatorXiaomi
TypeOpen Weight
Context128K
Score63

Knowledge

MiMo-V2-Flash

GPT-OSS 120B

48.8

MiMo-V2-Flash

76.8

51
MMLU
79
50
GPQA
78
48
SuperGPQA
76
46
OpenBookQA
74

Coding

MiMo-V2-Flash

GPT-OSS 120B

43

MiMo-V2-Flash

71

43
HumanEval
71

Mathematics

MiMo-V2-Flash

GPT-OSS 120B

50

MiMo-V2-Flash

78

51
AIME 2023
79
53
AIME 2024
81
52
AIME 2025
80
47
HMMT Feb 2023
75
49
HMMT Feb 2024
77
48
HMMT Feb 2025
76
50
BRUMO 2025
78

Reasoning

MiMo-V2-Flash

GPT-OSS 120B

48

MiMo-V2-Flash

75

49
SimpleQA
76
47
MuSR
74

Frequently Asked Questions

Which is better, GPT-OSS 120B or MiMo-V2-Flash?

MiMo-V2-Flash scores higher overall with 63 vs 42, a difference of 21 points across all benchmarks.

Which is better for knowledge tasks, GPT-OSS 120B or MiMo-V2-Flash?

MiMo-V2-Flash leads in knowledge tasks with an average score of 76.8 vs 48.8.

Which is better for coding, GPT-OSS 120B or MiMo-V2-Flash?

MiMo-V2-Flash leads in coding with an average score of 71 vs 43.

Which is better for math, GPT-OSS 120B or MiMo-V2-Flash?

MiMo-V2-Flash leads in math with an average score of 78 vs 50.

Which is better for reasoning, GPT-OSS 120B or MiMo-V2-Flash?

MiMo-V2-Flash leads in reasoning with an average score of 75 vs 48.

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