benchlm.ai

Claude Haiku 4.5 vs DeepSeek V3.1 (Reasoning)

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

Quick Verdict

Claude Haiku 4.5 wins overall with a score of 57 vs 25 (32 point difference).Claude Haiku 4.5 wins 4 out of 4 categories.

Claude Haiku 4.5

CreatorAnthropic
TypeProprietary
Context200K
Score57

DeepSeek V3.1 (Reasoning)

CreatorDeepSeek
TypeOpen Weight
Context128K
Score25

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

65.8

DeepSeek V3.1 (Reasoning)

31.8

68
MMLU
34
67
GPQA
33
65
SuperGPQA
31
63
OpenBookQA
29

Coding

Claude Haiku 4.5

Claude Haiku 4.5

60

DeepSeek V3.1 (Reasoning)

26

60
HumanEval
26

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

67

DeepSeek V3.1 (Reasoning)

33

68
AIME 2023
34
70
AIME 2024
36
69
AIME 2025
35
64
HMMT Feb 2023
30
66
HMMT Feb 2024
32
65
HMMT Feb 2025
31
67
BRUMO 2025
33

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

64

DeepSeek V3.1 (Reasoning)

31

65
SimpleQA
32
63
MuSR
30

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or DeepSeek V3.1 (Reasoning)?

Claude Haiku 4.5 scores higher overall with 57 vs 25, a difference of 32 points across all benchmarks.

Which is better for knowledge tasks, Claude Haiku 4.5 or DeepSeek V3.1 (Reasoning)?

Claude Haiku 4.5 leads in knowledge tasks with an average score of 65.8 vs 31.8.

Which is better for coding, Claude Haiku 4.5 or DeepSeek V3.1 (Reasoning)?

Claude Haiku 4.5 leads in coding with an average score of 60 vs 26.

Which is better for math, Claude Haiku 4.5 or DeepSeek V3.1 (Reasoning)?

Claude Haiku 4.5 leads in math with an average score of 67 vs 33.

Which is better for reasoning, Claude Haiku 4.5 or DeepSeek V3.1 (Reasoning)?

Claude Haiku 4.5 leads in reasoning with an average score of 64 vs 31.

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