Gemini 2.5 Flash vs Ministral 3 3B (Reasoning)

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

Gemini 2.5 Flash is clearly ahead on the aggregate, 49 to 31. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Gemini 2.5 Flash's sharpest advantage is in multimodal & grounded, where it averages 67.7 against 30.4. The single biggest benchmark swing on the page is MMMU-Pro, 69 to 25.

Gemini 2.5 Flash is also the more expensive model on tokens at $0.15 input / $0.60 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Ministral 3 3B (Reasoning). That is roughly Infinityx on output cost alone. Ministral 3 3B (Reasoning) is the reasoning model in the pair, while Gemini 2.5 Flash 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. Gemini 2.5 Flash gives you the larger context window at 1M, compared with 128K for Ministral 3 3B (Reasoning).

Quick Verdict

Pick Gemini 2.5 Flash if you want the stronger benchmark profile. Ministral 3 3B (Reasoning) only becomes the better choice if you want the cheaper token bill or you want the stronger reasoning-first profile.

Agentic

Gemini 2.5 Flash

Gemini 2.5 Flash

46.5

Ministral 3 3B (Reasoning)

34

44
Terminal-Bench 2.0
33
58
BrowseComp
37
41
OSWorld-Verified
33

Coding

Gemini 2.5 Flash

Gemini 2.5 Flash

21.7

Ministral 3 3B (Reasoning)

7.2

42
HumanEval
16
23
SWE-bench Verified
9
18
LiveCodeBench
8
25
SWE-bench Pro
6

Multimodal & Grounded

Gemini 2.5 Flash

Gemini 2.5 Flash

67.7

Ministral 3 3B (Reasoning)

30.4

69
MMMU-Pro
25
66
OfficeQA Pro
37

Reasoning

Gemini 2.5 Flash

Gemini 2.5 Flash

59.2

Ministral 3 3B (Reasoning)

35.3

48
SimpleQA
26
46
MuSR
26
75
BBH
63
68
LongBench v2
37
68
MRCRv2
40

Knowledge

Gemini 2.5 Flash

Gemini 2.5 Flash

40.5

Ministral 3 3B (Reasoning)

25.2

50
MMLU
25
49
GPQA
24
47
SuperGPQA
22
45
OpenBookQA
20
64
MMLU-Pro
49
1
HLE
1
49
FrontierScience
29

Instruction Following

Gemini 2.5 Flash

Gemini 2.5 Flash

79

Ministral 3 3B (Reasoning)

68

79
IFEval
68

Multilingual

Gemini 2.5 Flash

Gemini 2.5 Flash

70.8

Ministral 3 3B (Reasoning)

59.7

74
MGSM
61
69
MMLU-ProX
59

Mathematics

Gemini 2.5 Flash

Gemini 2.5 Flash

59.4

Ministral 3 3B (Reasoning)

40.9

50
AIME 2023
27
52
AIME 2024
29
51
AIME 2025
28
46
HMMT Feb 2023
23
48
HMMT Feb 2024
25
47
HMMT Feb 2025
24
49
BRUMO 2025
26
72
MATH-500
59

Frequently Asked Questions

Which is better, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash is ahead overall, 49 to 31. The biggest single separator in this matchup is MMMU-Pro, where the scores are 69 and 25.

Which is better for knowledge tasks, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash has the edge for knowledge tasks in this comparison, averaging 40.5 versus 25.2. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash has the edge for coding in this comparison, averaging 21.7 versus 7.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash has the edge for math in this comparison, averaging 59.4 versus 40.9. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash has the edge for reasoning in this comparison, averaging 59.2 versus 35.3. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash has the edge for agentic tasks in this comparison, averaging 46.5 versus 34. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash has the edge for multimodal and grounded tasks in this comparison, averaging 67.7 versus 30.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash has the edge for instruction following in this comparison, averaging 79 versus 68. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Gemini 2.5 Flash or Ministral 3 3B (Reasoning)?

Gemini 2.5 Flash has the edge for multilingual tasks in this comparison, averaging 70.8 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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