GPT-5 (medium) vs Ministral 3 8B (Reasoning)

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

GPT-5 (medium) is clearly ahead on the aggregate, 78 to 36. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

GPT-5 (medium)'s sharpest advantage is in multimodal & grounded, where it averages 88.1 against 33.4. The single biggest benchmark swing on the page is MMMU-Pro, 89 to 28.

Quick Verdict

Pick GPT-5 (medium) if you want the stronger benchmark profile. Ministral 3 8B (Reasoning) only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

GPT-5 (medium)

GPT-5 (medium)

75.5

Ministral 3 8B (Reasoning)

38.5

77
Terminal-Bench 2.0
39
78
BrowseComp
41
72
OSWorld-Verified
36

Coding

GPT-5 (medium)

GPT-5 (medium)

66.1

Ministral 3 8B (Reasoning)

15.2

83
HumanEval
24
67
SWE-bench Verified
17
60
LiveCodeBench
16
72
SWE-bench Pro
14

Multimodal & Grounded

GPT-5 (medium)

GPT-5 (medium)

88.1

Ministral 3 8B (Reasoning)

33.4

89
MMMU-Pro
28
87
OfficeQA Pro
40

Reasoning

GPT-5 (medium)

GPT-5 (medium)

84.3

Ministral 3 8B (Reasoning)

42.1

87
SimpleQA
32
85
MuSR
33
92
BBH
70
81
LongBench v2
44
81
MRCRv2
47

Knowledge

GPT-5 (medium)

GPT-5 (medium)

69.8

Ministral 3 8B (Reasoning)

30

91
MMLU
30
89
GPQA
29
87
SuperGPQA
27
85
OpenBookQA
25
81
MMLU-Pro
54
27
HLE
5
82
FrontierScience
34

Instruction Following

GPT-5 (medium)

GPT-5 (medium)

88

Ministral 3 8B (Reasoning)

70

88
IFEval
70

Multilingual

GPT-5 (medium)

GPT-5 (medium)

88.1

Ministral 3 8B (Reasoning)

61.7

90
MGSM
63
87
MMLU-ProX
61

Mathematics

GPT-5 (medium)

GPT-5 (medium)

92

Ministral 3 8B (Reasoning)

47.8

93
AIME 2023
33
95
AIME 2024
35
94
AIME 2025
34
89
HMMT Feb 2023
29
91
HMMT Feb 2024
31
90
HMMT Feb 2025
30
92
BRUMO 2025
32
92
MATH-500
67

Frequently Asked Questions

Which is better, GPT-5 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) is ahead overall, 78 to 36. The biggest single separator in this matchup is MMMU-Pro, where the scores are 89 and 28.

Which is better for knowledge tasks, GPT-5 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) has the edge for knowledge tasks in this comparison, averaging 69.8 versus 30. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, GPT-5 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) has the edge for coding in this comparison, averaging 66.1 versus 15.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, GPT-5 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) has the edge for math in this comparison, averaging 92 versus 47.8. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, GPT-5 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) has the edge for reasoning in this comparison, averaging 84.3 versus 42.1. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, GPT-5 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) has the edge for agentic tasks in this comparison, averaging 75.5 versus 38.5. 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 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) has the edge for multimodal and grounded tasks in this comparison, averaging 88.1 versus 33.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, GPT-5 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) has the edge for instruction following in this comparison, averaging 88 versus 70. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, GPT-5 (medium) or Ministral 3 8B (Reasoning)?

GPT-5 (medium) has the edge for multilingual tasks in this comparison, averaging 88.1 versus 61.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

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