Claude Haiku 4.5 vs Gemini 3 Pro Deep Think

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

Quick Verdict

Gemini 3 Pro Deep Think wins overall with a score of 81 vs 57 (24 point difference).Gemini 3 Pro Deep Think wins 4 out of 4 categories.

Knowledge

Gemini 3 Pro Deep Think

Claude Haiku 4.5

65.8

Gemini 3 Pro Deep Think

96

68
MMLU
99
67
GPQA
97
65
SuperGPQA
95
63
OpenBookQA
93

Coding

Gemini 3 Pro Deep Think

Claude Haiku 4.5

60

Gemini 3 Pro Deep Think

91

60
HumanEval
91

Mathematics

Gemini 3 Pro Deep Think

Claude Haiku 4.5

67

Gemini 3 Pro Deep Think

97.1

68
AIME 2023
99
70
AIME 2024
99
69
AIME 2025
98
64
HMMT Feb 2023
95
66
HMMT Feb 2024
97
65
HMMT Feb 2025
96
67
BRUMO 2025
96

Reasoning

Gemini 3 Pro Deep Think

Claude Haiku 4.5

64

Gemini 3 Pro Deep Think

94

65
SimpleQA
95
63
MuSR
93

Frequently Asked Questions

Which is better, Claude Haiku 4.5 or Gemini 3 Pro Deep Think?

Gemini 3 Pro Deep Think scores higher overall with 81 vs 57, a difference of 24 points across all benchmarks.

Which is better for knowledge tasks, Claude Haiku 4.5 or Gemini 3 Pro Deep Think?

Gemini 3 Pro Deep Think leads in knowledge tasks with an average score of 96 vs 65.8.

Which is better for coding, Claude Haiku 4.5 or Gemini 3 Pro Deep Think?

Gemini 3 Pro Deep Think leads in coding with an average score of 91 vs 60.

Which is better for math, Claude Haiku 4.5 or Gemini 3 Pro Deep Think?

Gemini 3 Pro Deep Think leads in math with an average score of 97.1 vs 67.

Which is better for reasoning, Claude Haiku 4.5 or Gemini 3 Pro Deep Think?

Gemini 3 Pro Deep Think leads in reasoning with an average score of 94 vs 64.