Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Gemma 4 31B
73
Winner · 3/8 categoriesGPT-5.4 mini
66
0/8 categoriesGemma 4 31B· GPT-5.4 mini
Pick Gemma 4 31B if you want the stronger benchmark profile. GPT-5.4 mini only becomes the better choice if you need the larger 400K context window.
Gemma 4 31B is clearly ahead on the aggregate, 73 to 66. 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 reasoning, where it averages 66.4 against 40.7. The single biggest benchmark swing on the page is MRCRv2, 66.4% to 40.7%.
GPT-5.4 mini is also the more expensive model on tokens at $0.75 input / $4.50 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. GPT-5.4 mini gives you the larger context window at 400K, compared with 256K for Gemma 4 31B.
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.
| Benchmark | Gemma 4 31B | GPT-5.4 mini |
|---|---|---|
| Agentic | ||
| Terminal-Bench 2.0 | — | 60% |
| OSWorld-Verified | — | 72.1% |
| MCP Atlas | — | 57.7% |
| Toolathlon | — | 42.9% |
| Tau2-Telecom | — | 93.4% |
| CodingGemma 4 31B wins | ||
| LiveCodeBench | 80% | — |
| SWE-bench Pro | — | 54.4% |
| Multimodal & Grounded | ||
| MMMU-Pro | 76.9% | — |
| ReasoningGemma 4 31B wins | ||
| BBH | 74.4% | — |
| MRCRv2 | 66.4% | 40.7% |
| MRCR v2 64K-128K | — | 47.7% |
| MRCR v2 128K-256K | — | 33.6% |
| Graphwalks Parents 128K | — | 71.5% |
| KnowledgeGemma 4 31B wins | ||
| GPQA | 84.3% | 88% |
| MMLU-Pro | 85.2% | — |
| HLE | 26.5% | 41.5% |
| HLE w/o tools | 19.5% | 28.2% |
| Instruction Following | ||
| IFEval | — | 87.4% |
| Multilingual | ||
| Coming soon | ||
| Mathematics | ||
| MATH-500 | — | 97.4% |
Gemma 4 31B is ahead overall, 73 to 66. The biggest single separator in this matchup is MRCRv2, where the scores are 66.4% and 40.7%.
Gemma 4 31B has the edge for knowledge tasks in this comparison, averaging 61.3 versus 57.4. Inside this category, HLE is the benchmark that creates the most daylight between them.
Gemma 4 31B has the edge for coding in this comparison, averaging 80 versus 54.4. GPT-5.4 mini stays close enough that the answer can still flip depending on your workload.
Gemma 4 31B has the edge for reasoning in this comparison, averaging 66.4 versus 40.7. Inside this category, MRCRv2 is the benchmark that creates the most daylight between them.
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