GPT-5 mini vs Ministral 3 14B (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 60. 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 reasoning, where it averages 81.8 against 69.2. The single biggest benchmark swing on the page is HumanEval, 80 to 62.

Quick Verdict

Pick GPT-5 mini if you want the stronger benchmark profile. Ministral 3 14B (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 14B (Reasoning)

58.5

68
Terminal-Bench 2.0
60
70
BrowseComp
61
60
OSWorld-Verified
55

Coding

GPT-5 mini

GPT-5 mini

42.8

Ministral 3 14B (Reasoning)

35

80
HumanEval
62
41
SWE-bench Verified
39
37
LiveCodeBench
33
49
SWE-bench Pro
36

Multimodal & Grounded

GPT-5 mini

GPT-5 mini

83.8

Ministral 3 14B (Reasoning)

71.5

86
MMMU-Pro
71
81
OfficeQA Pro
72

Reasoning

GPT-5 mini

GPT-5 mini

81.8

Ministral 3 14B (Reasoning)

69.2

84
SimpleQA
70
82
MuSR
70
87
BBH
80
80
LongBench v2
66
79
MRCRv2
66

Knowledge

GPT-5 mini

GPT-5 mini

62.8

Ministral 3 14B (Reasoning)

52.1

88
MMLU
71
86
GPQA
70
84
SuperGPQA
68
82
OpenBookQA
66
73
MMLU-Pro
69
16
HLE
7
75
FrontierScience
62

Instruction Following

GPT-5 mini

GPT-5 mini

82

Ministral 3 14B (Reasoning)

81

82
IFEval
81

Multilingual

GPT-5 mini

GPT-5 mini

80.1

Ministral 3 14B (Reasoning)

77.8

82
MGSM
81
79
MMLU-ProX
76

Mathematics

GPT-5 mini

GPT-5 mini

87.2

Ministral 3 14B (Reasoning)

75.2

90
AIME 2023
73
92
AIME 2024
75
91
AIME 2025
74
86
HMMT Feb 2023
69
88
HMMT Feb 2024
71
87
HMMT Feb 2025
70
89
BRUMO 2025
72
85
MATH-500
79

Frequently Asked Questions

Which is better, GPT-5 mini or Ministral 3 14B (Reasoning)?

GPT-5 mini is ahead overall, 69 to 60. The biggest single separator in this matchup is HumanEval, where the scores are 80 and 62.

Which is better for knowledge tasks, GPT-5 mini or Ministral 3 14B (Reasoning)?

GPT-5 mini has the edge for knowledge tasks in this comparison, averaging 62.8 versus 52.1. 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 14B (Reasoning)?

GPT-5 mini has the edge for coding in this comparison, averaging 42.8 versus 35. 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 14B (Reasoning)?

GPT-5 mini has the edge for math in this comparison, averaging 87.2 versus 75.2. 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 14B (Reasoning)?

GPT-5 mini has the edge for reasoning in this comparison, averaging 81.8 versus 69.2. 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 14B (Reasoning)?

GPT-5 mini has the edge for agentic tasks in this comparison, averaging 65.7 versus 58.5. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, GPT-5 mini or Ministral 3 14B (Reasoning)?

GPT-5 mini has the edge for multimodal and grounded tasks in this comparison, averaging 83.8 versus 71.5. 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 14B (Reasoning)?

GPT-5 mini has the edge for instruction following in this comparison, averaging 82 versus 81. 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 14B (Reasoning)?

GPT-5 mini has the edge for multilingual tasks in this comparison, averaging 80.1 versus 77.8. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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