Mercury 2 vs Ministral 3 8B

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

Mercury 2 is clearly ahead on the aggregate, 65 to 32. 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 36.1. The single biggest benchmark swing on the page is MuSR, 82 to 26.

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. That is roughly Infinityx on output cost alone. Mercury 2 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.

Quick Verdict

Pick Mercury 2 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.

Agentic

Mercury 2

Mercury 2

63.7

Ministral 3 8B

28.9

63
Terminal-Bench 2.0
26
67
BrowseComp
36
62
OSWorld-Verified
27

Coding

Mercury 2

Mercury 2

41.1

Ministral 3 8B

14.2

75
HumanEval
23
46
SWE-bench Verified
16
38
LiveCodeBench
15
43
SWE-bench Pro
13

Multimodal & Grounded

Mercury 2

Mercury 2

68.3

Ministral 3 8B

32.4

66
MMMU-Pro
27
71
OfficeQA Pro
39

Reasoning

Mercury 2

Mercury 2

80.1

Ministral 3 8B

36.1

82
SimpleQA
28
82
MuSR
26
87
BBH
63
77
LongBench v2
38
76
MRCRv2
41

Knowledge

Mercury 2

Mercury 2

57.2

Ministral 3 8B

28

78
MMLU
28
78
GPQA
27
76
SuperGPQA
25
74
OpenBookQA
23
72
MMLU-Pro
52
9
HLE
3
69
FrontierScience
32

Instruction Following

Mercury 2

Mercury 2

84

Ministral 3 8B

69

84
IFEval
69

Multilingual

Mercury 2

Mercury 2

79.7

Ministral 3 8B

61.7

81
MGSM
63
79
MMLU-ProX
61

Mathematics

Mercury 2

Mercury 2

80.9

Ministral 3 8B

43.3

81
AIME 2023
30
83
AIME 2024
32
82
AIME 2025
33
77
HMMT Feb 2023
26
79
HMMT Feb 2024
28
78
HMMT Feb 2025
27
80
BRUMO 2025
29
82
MATH-500
60

Frequently Asked Questions

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

Mercury 2 is ahead overall, 65 to 32. The biggest single separator in this matchup is MuSR, where the scores are 82 and 26.

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

Mercury 2 has the edge for knowledge tasks in this comparison, averaging 57.2 versus 28. 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?

Mercury 2 has the edge for coding in this comparison, averaging 41.1 versus 14.2. 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?

Mercury 2 has the edge for math in this comparison, averaging 80.9 versus 43.3. 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?

Mercury 2 has the edge for reasoning in this comparison, averaging 80.1 versus 36.1. Inside this category, MuSR is the benchmark that creates the most daylight between them.

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

Mercury 2 has the edge for agentic tasks in this comparison, averaging 63.7 versus 28.9. 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, Mercury 2 or Ministral 3 8B?

Mercury 2 has the edge for multimodal and grounded tasks in this comparison, averaging 68.3 versus 32.4. 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?

Mercury 2 has the edge for instruction following in this comparison, averaging 84 versus 69. 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?

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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