Claude Haiku 4.5 vs DeepSeek V3.1

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 24 (33 point difference).Claude Haiku 4.5 wins 4 out of 4 categories.

Knowledge

Claude Haiku 4.5

Claude Haiku 4.5

65.8

DeepSeek V3.1

30.8

68
MMLU
33
67
GPQA
32
65
SuperGPQA
30
63
OpenBookQA
28

Coding

Claude Haiku 4.5

Claude Haiku 4.5

60

DeepSeek V3.1

25

60
HumanEval
25

Mathematics

Claude Haiku 4.5

Claude Haiku 4.5

67

DeepSeek V3.1

32

68
AIME 2023
33
70
AIME 2024
35
69
AIME 2025
34
64
HMMT Feb 2023
29
66
HMMT Feb 2024
31
65
HMMT Feb 2025
30
67
BRUMO 2025
32

Reasoning

Claude Haiku 4.5

Claude Haiku 4.5

64

DeepSeek V3.1

30

65
SimpleQA
31
63
MuSR
29

Frequently Asked Questions

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

Claude Haiku 4.5 scores higher overall with 57 vs 24, a difference of 33 points across all benchmarks.

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

Claude Haiku 4.5 leads in knowledge tasks with an average score of 65.8 vs 30.8.

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

Claude Haiku 4.5 leads in coding with an average score of 60 vs 25.

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

Claude Haiku 4.5 leads in math with an average score of 67 vs 32.

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

Claude Haiku 4.5 leads in reasoning with an average score of 64 vs 30.