benchlm.ai

GPT-OSS 20B vs Qwen2.5-1M

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

Quick Verdict

Qwen2.5-1M wins overall with a score of 66 vs 22 (44 point difference).Qwen2.5-1M wins 4 out of 4 categories.

GPT-OSS 20B

CreatorOpenAI
TypeOpen Weight
Context128K
Score22

Qwen2.5-1M

CreatorAlibaba
TypeOpen Weight
Context1M
Score66

Knowledge

Qwen2.5-1M

GPT-OSS 20B

28.8

Qwen2.5-1M

81.8

31
MMLU
84
30
GPQA
83
28
SuperGPQA
81
26
OpenBookQA
79

Coding

Qwen2.5-1M

GPT-OSS 20B

23

Qwen2.5-1M

76

23
HumanEval
76

Mathematics

Qwen2.5-1M

GPT-OSS 20B

30

Qwen2.5-1M

84

31
AIME 2023
85
33
AIME 2024
87
32
AIME 2025
86
27
HMMT Feb 2023
81
29
HMMT Feb 2024
83
28
HMMT Feb 2025
82
30
BRUMO 2025
84

Reasoning

Qwen2.5-1M

GPT-OSS 20B

28

Qwen2.5-1M

80

29
SimpleQA
81
27
MuSR
79

Frequently Asked Questions

Which is better, GPT-OSS 20B or Qwen2.5-1M?

Qwen2.5-1M scores higher overall with 66 vs 22, a difference of 44 points across all benchmarks.

Which is better for knowledge tasks, GPT-OSS 20B or Qwen2.5-1M?

Qwen2.5-1M leads in knowledge tasks with an average score of 81.8 vs 28.8.

Which is better for coding, GPT-OSS 20B or Qwen2.5-1M?

Qwen2.5-1M leads in coding with an average score of 76 vs 23.

Which is better for math, GPT-OSS 20B or Qwen2.5-1M?

Qwen2.5-1M leads in math with an average score of 84 vs 30.

Which is better for reasoning, GPT-OSS 20B or Qwen2.5-1M?

Qwen2.5-1M leads in reasoning with an average score of 80 vs 28.

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