Gemma 4 31B vs Mistral Small 4 (Reasoning)

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· Mistral Small 4 (Reasoning)

Quick Verdict

Pick Gemma 4 31B if you want the stronger benchmark profile. Mistral Small 4 (Reasoning) only becomes the better choice if knowledge is the priority.

Gemma 4 31B is clearly ahead on the aggregate, 73 to 64. 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 multimodal & grounded, where it averages 76.9 against 60. The single biggest benchmark swing on the page is MMMU-Pro, 76.9% to 60%. Mistral Small 4 (Reasoning) does hit back in knowledge, so the answer changes if that is the part of the workload you care about most.

Operational tradeoffs

PriceFree*Free*
SpeedN/AN/A
TTFTN/AN/A
Context256K256K

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 31BMistral Small 4 (Reasoning)
Agentic
Coming soon
CodingGemma 4 31B wins
LiveCodeBench80%63.6%
Multimodal & GroundedGemma 4 31B wins
MMMU-Pro76.9%60%
Reasoning
BBH74.4%
MRCRv266.4%
KnowledgeMistral Small 4 (Reasoning) wins
GPQA84.3%71.2%
MMLU-Pro85.2%78%
HLE26.5%
HLE w/o tools19.5%
Instruction Following
Coming soon
Multilingual
Coming soon
Mathematics
AIME 202583.8%
Frequently Asked Questions (4)

Which is better, Gemma 4 31B or Mistral Small 4 (Reasoning)?

Gemma 4 31B is ahead overall, 73 to 64. The biggest single separator in this matchup is MMMU-Pro, where the scores are 76.9% and 60%.

Which is better for knowledge tasks, Gemma 4 31B or Mistral Small 4 (Reasoning)?

Mistral Small 4 (Reasoning) has the edge for knowledge tasks in this comparison, averaging 75.6 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 Mistral Small 4 (Reasoning)?

Gemma 4 31B has the edge for coding in this comparison, averaging 80 versus 63.6. Inside this category, LiveCodeBench is the benchmark that creates the most daylight between them.

Which is better for multimodal and grounded tasks, Gemma 4 31B or Mistral Small 4 (Reasoning)?

Gemma 4 31B has the edge for multimodal and grounded tasks in this comparison, averaging 76.9 versus 60. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.

Last updated: April 2, 2026

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