Mercury 2 vs Ministral 3 8B (Reasoning)

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

Mercury 2 is clearly ahead on the aggregate, 65 to 36. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Mercury 2's sharpest advantage is in reasoning, where it averages 80.1 against 42.1. The single biggest benchmark swing on the page is HumanEval, 75 to 24.

Mercury 2 is also the more expensive model on tokens at $0.25 input / $0.75 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Ministral 3 8B (Reasoning). That is roughly Infinityx on output cost alone.

Quick Verdict

Pick Mercury 2 if you want the stronger benchmark profile. Ministral 3 8B (Reasoning) only becomes the better choice if you want the cheaper token bill.

Agentic

Mercury 2

Mercury 2

63.7

Ministral 3 8B (Reasoning)

38.5

63
Terminal-Bench 2.0
39
67
BrowseComp
41
62
OSWorld-Verified
36

Coding

Mercury 2

Mercury 2

41.1

Ministral 3 8B (Reasoning)

15.2

75
HumanEval
24
46
SWE-bench Verified
17
38
LiveCodeBench
16
43
SWE-bench Pro
14

Multimodal & Grounded

Mercury 2

Mercury 2

68.3

Ministral 3 8B (Reasoning)

33.4

66
MMMU-Pro
28
71
OfficeQA Pro
40

Reasoning

Mercury 2

Mercury 2

80.1

Ministral 3 8B (Reasoning)

42.1

82
SimpleQA
32
82
MuSR
33
87
BBH
70
77
LongBench v2
44
76
MRCRv2
47

Knowledge

Mercury 2

Mercury 2

57.2

Ministral 3 8B (Reasoning)

30

78
MMLU
30
78
GPQA
29
76
SuperGPQA
27
74
OpenBookQA
25
72
MMLU-Pro
54
9
HLE
5
69
FrontierScience
34

Instruction Following

Mercury 2

Mercury 2

84

Ministral 3 8B (Reasoning)

70

84
IFEval
70

Multilingual

Mercury 2

Mercury 2

79.7

Ministral 3 8B (Reasoning)

61.7

81
MGSM
63
79
MMLU-ProX
61

Mathematics

Mercury 2

Mercury 2

80.9

Ministral 3 8B (Reasoning)

47.8

81
AIME 2023
33
83
AIME 2024
35
82
AIME 2025
34
77
HMMT Feb 2023
29
79
HMMT Feb 2024
31
78
HMMT Feb 2025
30
80
BRUMO 2025
32
82
MATH-500
67

Frequently Asked Questions

Which is better, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 is ahead overall, 65 to 36. The biggest single separator in this matchup is HumanEval, where the scores are 75 and 24.

Which is better for knowledge tasks, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 has the edge for knowledge tasks in this comparison, averaging 57.2 versus 30. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 has the edge for coding in this comparison, averaging 41.1 versus 15.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 has the edge for math in this comparison, averaging 80.9 versus 47.8. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 has the edge for reasoning in this comparison, averaging 80.1 versus 42.1. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 has the edge for agentic tasks in this comparison, averaging 63.7 versus 38.5. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 has the edge for multimodal and grounded tasks in this comparison, averaging 68.3 versus 33.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 has the edge for instruction following in this comparison, averaging 84 versus 70. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Mercury 2 or Ministral 3 8B (Reasoning)?

Mercury 2 has the edge for multilingual tasks in this comparison, averaging 79.7 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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