Gemma 3 27B vs o1-pro

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

Gemma 3 27B is clearly ahead on the aggregate, 42 to 33. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

o1-pro is the reasoning model in the pair, while Gemma 3 27B is not. That usually helps on harder chain-of-thought-heavy tests, but it can also mean more latency and more token spend in real use. o1-pro gives you the larger context window at 200K, compared with 32K for Gemma 3 27B.

Quick Verdict

Pick Gemma 3 27B if you want the stronger benchmark profile. o1-pro only becomes the better choice if knowledge is the priority or you need the larger 200K context window.

Knowledge

o1-pro

Gemma 3 27B

37.3

o1-pro

79

45
MMLU
-
44
GPQA
79
42
SuperGPQA
-
40
OpenBookQA
-
50
MMLU-Pro
-
3
HLE
-

Coding

Gemma 3 27B
37
HumanEval
-
16
SWE-bench Verified
-
15
LiveCodeBench
-

Mathematics

o1-pro

Gemma 3 27B

45.5

o1-pro

86

45
AIME 2023
-
47
AIME 2024
86
46
AIME 2025
-
41
HMMT Feb 2023
-
43
HMMT Feb 2024
-
42
HMMT Feb 2025
-
44
BRUMO 2025
-
56
MATH-500
-

Reasoning

Gemma 3 27B
43
SimpleQA
-
41
MuSR
-
62
BBH
-

Instruction Following

Gemma 3 27B
67
IFEval
-

Multilingual

Gemma 3 27B
64
MGSM
-

Frequently Asked Questions

Which is better, Gemma 3 27B or o1-pro?

Gemma 3 27B is ahead overall, 42 to 33. The biggest single separator in this matchup is AIME 2024, where the scores are 47 and 86.

Which is better for knowledge tasks, Gemma 3 27B or o1-pro?

o1-pro has the edge for knowledge tasks in this comparison, averaging 79 versus 37.3. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for math, Gemma 3 27B or o1-pro?

o1-pro has the edge for math in this comparison, averaging 86 versus 45.5. Inside this category, AIME 2024 is the benchmark that creates the most daylight between them.

Last updated: March 9, 2026

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