Claude Haiku 4.5 vs Ministral 3 8B

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

Claude Haiku 4.5 is clearly ahead on the aggregate, 62 to 32. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Claude Haiku 4.5's sharpest advantage is in multimodal & grounded, where it averages 78.4 against 32.4. The single biggest benchmark swing on the page is MMMU-Pro, 82 to 27.

Claude Haiku 4.5 is also the more expensive model on tokens at $0.80 input / $4.00 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. Claude Haiku 4.5 gives you the larger context window at 200K, compared with 128K for Ministral 3 8B.

Quick Verdict

Pick Claude Haiku 4.5 if you want the stronger benchmark profile. Ministral 3 8B only becomes the better choice if you want the cheaper token bill.

Agentic

Claude Haiku 4.5

Claude Haiku 4.5

56.7

Ministral 3 8B

28.9

53
Terminal-Bench 2.0
26
62
BrowseComp
36
57
OSWorld-Verified
27

Coding

Claude Haiku 4.5

Claude Haiku 4.5

41.7

Ministral 3 8B

14.2

60
HumanEval
23
48
SWE-bench Verified
16
36
LiveCodeBench
15
46
SWE-bench Pro
13

Multimodal & Grounded

Claude Haiku 4.5

Claude Haiku 4.5

78.4

Ministral 3 8B

32.4

82
MMMU-Pro
27
74
OfficeQA Pro
39

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

68.9

Ministral 3 8B

36.1

65
SimpleQA
28
63
MuSR
26
81
BBH
63
72
LongBench v2
38
70
MRCRv2
41

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

53.6

Ministral 3 8B

28

68
MMLU
28
67
GPQA
27
65
SuperGPQA
25
63
OpenBookQA
23
73
MMLU-Pro
52
11
HLE
3
64
FrontierScience
32

Instruction Following

Claude Haiku 4.5

Claude Haiku 4.5

86

Ministral 3 8B

69

86
IFEval
69

Multilingual

Claude Haiku 4.5

Claude Haiku 4.5

80.1

Ministral 3 8B

61.7

82
MGSM
63
79
MMLU-ProX
61

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

73.3

Ministral 3 8B

43.3

68
AIME 2023
30
70
AIME 2024
32
69
AIME 2025
33
64
HMMT Feb 2023
26
66
HMMT Feb 2024
28
65
HMMT Feb 2025
27
67
BRUMO 2025
29
81
MATH-500
60

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 is ahead overall, 62 to 32. The biggest single separator in this matchup is MMMU-Pro, where the scores are 82 and 27.

Which is better for knowledge tasks, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 has the edge for knowledge tasks in this comparison, averaging 53.6 versus 28. Inside this category, MMLU is the benchmark that creates the most daylight between them.

Which is better for coding, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 has the edge for coding in this comparison, averaging 41.7 versus 14.2. Inside this category, HumanEval is the benchmark that creates the most daylight between them.

Which is better for math, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 has the edge for math in this comparison, averaging 73.3 versus 43.3. Inside this category, AIME 2023 is the benchmark that creates the most daylight between them.

Which is better for reasoning, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 has the edge for reasoning in this comparison, averaging 68.9 versus 36.1. Inside this category, SimpleQA is the benchmark that creates the most daylight between them.

Which is better for agentic tasks, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 has the edge for agentic tasks in this comparison, averaging 56.7 versus 28.9. Inside this category, OSWorld-Verified is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 has the edge for multimodal and grounded tasks in this comparison, averaging 78.4 versus 32.4. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Which is better for instruction following, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 has the edge for instruction following in this comparison, averaging 86 versus 69. Inside this category, IFEval is the benchmark that creates the most daylight between them.

Which is better for multilingual tasks, Claude Haiku 4.5 or Ministral 3 8B?

Claude Haiku 4.5 has the edge for multilingual tasks in this comparison, averaging 80.1 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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