Gemma 4 31B vs o1-pro

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

Agentic
Coding
Multimodal & Grounded
Reasoning
Knowledge
Instruction Following
Multilingual
Mathematics

Gemma 4 31B· o1-pro

Quick Verdict

Pick Gemma 4 31B if you want the stronger benchmark profile. o1-pro only becomes the better choice if knowledge is the priority.

Gemma 4 31B is clearly ahead on the aggregate, 73 to 45. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.

Gemma 4 31B's sharpest advantage is in coding, where it averages 80 against 23. The single biggest benchmark swing on the page is MMMU-Pro, 76.9% to 48%. o1-pro does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.

o1-pro is also the more expensive model on tokens at $150.00 input / $600.00 output per 1M tokens, versus $0.00 input / $0.00 output per 1M tokens for Gemma 4 31B. That is roughly Infinityx on output cost alone. Gemma 4 31B gives you the larger context window at 256K, compared with 200K for o1-pro.

Operational tradeoffs

ProviderGoogleOpenAI
PriceFree*$150.00 / $600.00
SpeedN/AN/A
TTFTN/AN/A
Context256K200K

Decision framing

BenchLM keeps the benchmark table and the operator tradeoffs on the same page so a better score does not hide a materially slower, pricier, or smaller-context model.

Runtime metrics show N/A when BenchLM does not have a sourced snapshot for that exact model. The scoring rules and freshness policy are documented on the methodology page.

BenchmarkGemma 4 31Bo1-pro
Agentic
Terminal-Bench 2.040%
BrowseComp50%
OSWorld-Verified32%
CodingGemma 4 31B wins
LiveCodeBench80%
SWE-bench Pro23%
Multimodal & GroundedGemma 4 31B wins
MMMU-Pro76.9%48%
OfficeQA Pro49%
ReasoningGemma 4 31B wins
BBH74.4%
MRCRv266.4%59%
LongBench v254%
Knowledgeo1-pro wins
GPQA84.3%79%
MMLU-Pro85.2%
HLE26.5%
HLE w/o tools19.5%
FrontierScience63%
Instruction Following
Coming soon
Multilingual
MMLU-ProX52%
Mathematics
AIME 202486%
Frequently Asked Questions (5)

Which is better, Gemma 4 31B or o1-pro?

Gemma 4 31B is ahead overall, 73 to 45. The biggest single separator in this matchup is MMMU-Pro, where the scores are 76.9% and 48%.

Which is better for knowledge tasks, Gemma 4 31B or o1-pro?

o1-pro has the edge for knowledge tasks in this comparison, averaging 69.4 versus 61.3. Inside this category, GPQA is the benchmark that creates the most daylight between them.

Which is better for coding, Gemma 4 31B or o1-pro?

Gemma 4 31B has the edge for coding in this comparison, averaging 80 versus 23. o1-pro stays close enough that the answer can still flip depending on your workload.

Which is better for reasoning, Gemma 4 31B or o1-pro?

Gemma 4 31B has the edge for reasoning in this comparison, averaging 66.4 versus 56.3. Inside this category, MRCRv2 is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Gemma 4 31B or o1-pro?

Gemma 4 31B has the edge for multimodal and grounded tasks in this comparison, averaging 76.9 versus 48.5. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Last updated: April 2, 2026

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