Claude 3 Opus vs Ministral 3 3B

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

Claude 3 Opus is clearly ahead on the aggregate, 51 to 27. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude 3 Opus's sharpest advantage is in multimodal & grounded, where it averages 70.3 against 30.4. The single biggest benchmark swing on the page is MMMU-Pro, 73 to 25.

Claude 3 Opus gives you the larger context window at 200K, compared with 128K for Ministral 3 3B.

Quick Verdict

Pick Claude 3 Opus if you want the stronger benchmark profile. Ministral 3 3B only becomes the better choice if its workflow or ecosystem matters more than the raw scoreboard.

Agentic

Claude 3 Opus

Claude 3 Opus

48.1

Ministral 3 3B

22.9

44
Terminal-Bench 2.0
19
56
BrowseComp
33
47
OSWorld-Verified
20

Coding

Claude 3 Opus

Claude 3 Opus

19

Ministral 3 3B

6.2

53
HumanEval
15
10
SWE-bench Verified
8
20
LiveCodeBench
7
20
SWE-bench Pro
5

Multimodal & Grounded

Claude 3 Opus

Claude 3 Opus

70.3

Ministral 3 3B

30.4

73
MMMU-Pro
25
67
OfficeQA Pro
37

Reasoning

Claude 3 Opus

Claude 3 Opus

61.6

Ministral 3 3B

30.1

59
SimpleQA
22
57
MuSR
20
74
BBH
57
62
LongBench v2
32
63
MRCRv2
35

Knowledge

Claude 3 Opus

Claude 3 Opus

45

Ministral 3 3B

24.5

61
MMLU
24
61
GPQA
23
59
SuperGPQA
21
57
OpenBookQA
19
62
MMLU-Pro
48
1
HLE
1
56
FrontierScience
28

Instruction Following

Claude 3 Opus

Claude 3 Opus

77

Ministral 3 3B

67

77
IFEval
67

Multilingual

Claude 3 Opus

Claude 3 Opus

69.8

Ministral 3 3B

59.7

73
MGSM
61
68
MMLU-ProX
59

Mathematics

Claude 3 Opus

Claude 3 Opus

65.9

Ministral 3 3B

36

61
AIME 2023
23
63
AIME 2024
25
62
AIME 2025
24
57
HMMT Feb 2023
19
59
HMMT Feb 2024
21
58
HMMT Feb 2025
20
60
BRUMO 2025
22
73
MATH-500
53

Frequently Asked Questions

Which is better, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus is ahead overall, 51 to 27. The biggest single separator in this matchup is MMMU-Pro, where the scores are 73 and 25.

Which is better for knowledge tasks, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus has the edge for knowledge tasks in this comparison, averaging 45 versus 24.5. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus has the edge for coding in this comparison, averaging 19 versus 6.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus has the edge for math in this comparison, averaging 65.9 versus 36. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus has the edge for reasoning in this comparison, averaging 61.6 versus 30.1. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus has the edge for agentic tasks in this comparison, averaging 48.1 versus 22.9. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus has the edge for multimodal and grounded tasks in this comparison, averaging 70.3 versus 30.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus has the edge for instruction following in this comparison, averaging 77 versus 67. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Claude 3 Opus or Ministral 3 3B?

Claude 3 Opus has the edge for multilingual tasks in this comparison, averaging 69.8 versus 59.7. Inside this category, MGSM is the benchmark that creates the most daylight between them.

Last updated: March 12, 2026

Weekly LLM Benchmark Digest

Get notified when new models drop, benchmark scores change, or the leaderboard shifts. One email per week.

Free. No spam. Unsubscribe anytime. We only store derived location metadata for consent routing.