Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
o3 is clearly ahead on the aggregate, 70 to 32. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
o3's sharpest advantage is in reasoning, where it averages 82.6 against 36.1. The single biggest benchmark swing on the page is GPQA, 87 to 27.
o3 is also the more expensive model on tokens at $10.00 input / $40.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Ministral 3 8B. That is roughly Infinityx on output cost alone. o3 is the reasoning model in the pair, while Ministral 3 8B 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. o3 gives you the larger context window at 200K, compared with 128K for Ministral 3 8B.
Pick o3 if you want the stronger benchmark profile. Ministral 3 8B only becomes the better choice if you want the cheaper token bill or you would rather avoid the extra latency and token burn of a reasoning model.
o3
69.9
Ministral 3 8B
28.9
o3
49.1
Ministral 3 8B
14.2
o3
72.3
Ministral 3 8B
32.4
o3
82.6
Ministral 3 8B
36.1
o3
66
Ministral 3 8B
28
o3
85
Ministral 3 8B
69
o3
81.1
Ministral 3 8B
61.7
o3
87.5
Ministral 3 8B
43.3
o3 is ahead overall, 70 to 32. The biggest single separator in this matchup is GPQA, where the scores are 87 and 27.
o3 has the edge for knowledge tasks in this comparison, averaging 66 versus 28. Inside this category, GPQA is the benchmark that creates the most daylight between them.
o3 has the edge for coding in this comparison, averaging 49.1 versus 14.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.
o3 has the edge for math in this comparison, averaging 87.5 versus 43.3. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.
o3 has the edge for reasoning in this comparison, averaging 82.6 versus 36.1. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.
o3 has the edge for agentic tasks in this comparison, averaging 69.9 versus 28.9. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.
o3 has the edge for multimodal and grounded tasks in this comparison, averaging 72.3 versus 32.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
o3 has the edge for instruction following in this comparison, averaging 85 versus 69. Inside this category, IFEval is the benchmark that creates the most daylight between them.
o3 has the edge for multilingual tasks in this comparison, averaging 81.1 versus 61.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.
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