Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Ministral 3 8B (Reasoning) finishes one point ahead overall, 36 to 35. That is enough to call, but not enough to treat as a blowout. This matchup comes down to a few meaningful edges rather than one model dominating the board.
Ministral 3 8B (Reasoning)'s sharpest advantage is in mathematics, where it averages 47.8 against 43.1. The single biggest benchmark swing on the page is BBH, 70 to 62. GPT-OSS 20B does hit back in multimodal & grounded, so the answer changes if that is the part of the workload you care about most.
Ministral 3 8B (Reasoning) is the reasoning model in the pair, while GPT-OSS 20B 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.
Pick Ministral 3 8B (Reasoning) if you want the stronger benchmark profile. GPT-OSS 20B only becomes the better choice if multimodal & grounded is the priority or you would rather avoid the extra latency and token burn of a reasoning model.
Ministral 3 8B (Reasoning)
38.5
GPT-OSS 20B
35.4
Ministral 3 8B (Reasoning)
15.2
GPT-OSS 20B
14.5
Ministral 3 8B (Reasoning)
33.4
GPT-OSS 20B
36
Ministral 3 8B (Reasoning)
42.1
GPT-OSS 20B
40.4
Ministral 3 8B (Reasoning)
30
GPT-OSS 20B
29
Ministral 3 8B (Reasoning)
70
GPT-OSS 20B
67
Ministral 3 8B (Reasoning)
61.7
GPT-OSS 20B
59.7
Ministral 3 8B (Reasoning)
47.8
GPT-OSS 20B
43.1
Ministral 3 8B (Reasoning) is ahead overall, 36 to 35. The biggest single separator in this matchup is BBH, where the scores are 70 and 62.
Ministral 3 8B (Reasoning) has the edge for knowledge tasks in this comparison, averaging 30 versus 29. Inside this category, HLE is the benchmark that creates the most daylight between them.
Ministral 3 8B (Reasoning) has the edge for coding in this comparison, averaging 15.2 versus 14.5. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.
Ministral 3 8B (Reasoning) has the edge for math in this comparison, averaging 47.8 versus 43.1. Inside this category, MATH-500 is the benchmark that creates the most daylight between them.
Ministral 3 8B (Reasoning) has the edge for reasoning in this comparison, averaging 42.1 versus 40.4. Inside this category, BBH is the benchmark that creates the most daylight between them.
Ministral 3 8B (Reasoning) has the edge for agentic tasks in this comparison, averaging 38.5 versus 35.4. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.
GPT-OSS 20B has the edge for multimodal and grounded tasks in this comparison, averaging 36 versus 33.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Ministral 3 8B (Reasoning) has the edge for instruction following in this comparison, averaging 70 versus 67. Inside this category, IFEval is the benchmark that creates the most daylight between them.
Ministral 3 8B (Reasoning) has the edge for multilingual tasks in this comparison, averaging 61.7 versus 59.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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