benchlm.ai

Gemini 2.5 Pro vs Gemini 3 Flash

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

Quick Verdict

Gemini 2.5 Pro wins overall with a score of 65 vs 58 (7 point difference).Gemini 2.5 Pro wins 4 out of 4 categories.

Gemini 2.5 Pro

CreatorGoogle
TypeProprietary
Context2M
Score65

Gemini 3 Flash

CreatorGoogle
TypeProprietary
Context1M
Score58

Knowledge

Gemini 2.5 Pro

Gemini 2.5 Pro

81.5

Gemini 3 Flash

67.8

83
MMLU
70
83
GPQA
69
81
SuperGPQA
67
79
OpenBookQA
65

Coding

Gemini 2.5 Pro

Gemini 2.5 Pro

75

Gemini 3 Flash

62

75
HumanEval
62

Mathematics

Gemini 2.5 Pro

Gemini 2.5 Pro

83

Gemini 3 Flash

69

84
AIME 2023
70
86
AIME 2024
72
85
AIME 2025
71
80
HMMT Feb 2023
66
82
HMMT Feb 2024
68
81
HMMT Feb 2025
67
83
BRUMO 2025
69

Reasoning

Gemini 2.5 Pro

Gemini 2.5 Pro

80

Gemini 3 Flash

66

81
SimpleQA
67
79
MuSR
65

Frequently Asked Questions

Which is better, Gemini 2.5 Pro or Gemini 3 Flash?

Gemini 2.5 Pro scores higher overall with 65 vs 58, a difference of 7 points across all benchmarks.

Which is better for knowledge tasks, Gemini 2.5 Pro or Gemini 3 Flash?

Gemini 2.5 Pro leads in knowledge tasks with an average score of 81.5 vs 67.8.

Which is better for coding, Gemini 2.5 Pro or Gemini 3 Flash?

Gemini 2.5 Pro leads in coding with an average score of 75 vs 62.

Which is better for math, Gemini 2.5 Pro or Gemini 3 Flash?

Gemini 2.5 Pro leads in math with an average score of 83 vs 69.

Which is better for reasoning, Gemini 2.5 Pro or Gemini 3 Flash?

Gemini 2.5 Pro leads in reasoning with an average score of 80 vs 66.

Related Comparisons

Gemini 2.5 Pro vs GPT-5.4Gemini 2.5 Pro vs Gemini 3.1 ProGemini 2.5 Pro vs Claude Opus 4.6Gemini 2.5 Pro vs GPT-5.3 CodexGemini 2.5 Pro vs Grok 4.1Gemini 2.5 Pro vs GPT-5.2