GPT-5 mini vs Ministral 3 3B (Reasoning)

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

GPT-5 mini is clearly ahead on the aggregate, 69 to 31. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5 mini's sharpest advantage is in multimodal & grounded, where it averages 83.8 against 30.4. The single biggest benchmark swing on the page is HumanEval, 80 to 16.

Quick Verdict

Pick GPT-5 mini if you want the stronger benchmark profile. Ministral 3 3B (Reasoning) only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

GPT-5 mini

GPT-5 mini

65.7

Ministral 3 3B (Reasoning)

34

68
Terminal-Bench 2.0
33
70
BrowseComp
37
60
OSWorld-Verified
33

Coding

GPT-5 mini

GPT-5 mini

42.8

Ministral 3 3B (Reasoning)

7.2

80
HumanEval
16
41
SWE-bench Verified
9
37
LiveCodeBench
8
49
SWE-bench Pro
6

Multimodal & Grounded

GPT-5 mini

GPT-5 mini

83.8

Ministral 3 3B (Reasoning)

30.4

86
MMMU-Pro
25
81
OfficeQA Pro
37

Reasoning

GPT-5 mini

GPT-5 mini

81.8

Ministral 3 3B (Reasoning)

35.3

84
SimpleQA
26
82
MuSR
26
87
BBH
63
80
LongBench v2
37
79
MRCRv2
40

Knowledge

GPT-5 mini

GPT-5 mini

62.8

Ministral 3 3B (Reasoning)

25.2

88
MMLU
25
86
GPQA
24
84
SuperGPQA
22
82
OpenBookQA
20
73
MMLU-Pro
49
16
HLE
1
75
FrontierScience
29

Instruction Following

GPT-5 mini

GPT-5 mini

82

Ministral 3 3B (Reasoning)

68

82
IFEval
68

Multilingual

GPT-5 mini

GPT-5 mini

80.1

Ministral 3 3B (Reasoning)

59.7

82
MGSM
61
79
MMLU-ProX
59

Mathematics

GPT-5 mini

GPT-5 mini

87.2

Ministral 3 3B (Reasoning)

40.9

90
AIME 2023
27
92
AIME 2024
29
91
AIME 2025
28
86
HMMT Feb 2023
23
88
HMMT Feb 2024
25
87
HMMT Feb 2025
24
89
BRUMO 2025
26
85
MATH-500
59

Frequently Asked Questions

Which is better, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini is ahead overall, 69 to 31. The biggest single separator in this matchup is HumanEval, where the scores are 80 and 16.

Which is better for knowledge tasks, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini has the edge for knowledge tasks in this comparison, averaging 62.8 versus 25.2. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini has the edge for coding in this comparison, averaging 42.8 versus 7.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini has the edge for math in this comparison, averaging 87.2 versus 40.9. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini has the edge for reasoning in this comparison, averaging 81.8 versus 35.3. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini has the edge for agentic tasks in this comparison, averaging 65.7 versus 34. Inside this category, Terminal-Bench 2.0 is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini has the edge for multimodal and grounded tasks in this comparison, averaging 83.8 versus 30.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini has the edge for instruction following in this comparison, averaging 82 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, GPT-5 mini or Ministral 3 3B (Reasoning)?

GPT-5 mini has the edge for multilingual tasks in this comparison, averaging 80.1 versus 59.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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