Side-by-side benchmark comparison across agentic, coding, multimodal, knowledge, reasoning, and math workflows.
Phi-4
49
0/8 categoriesQwen3.5-27B
70
Winner · 6/8 categoriesPhi-4· Qwen3.5-27B
Pick Qwen3.5-27B if you want the stronger benchmark profile. Phi-4 only becomes the better choice if you would rather avoid the extra latency and token burn of a reasoning model.
Qwen3.5-27B is clearly ahead on the aggregate, 70 to 49. The gap is large enough that you do not need to squint at the spreadsheet to see the difference.
Qwen3.5-27B's sharpest advantage is in reasoning, where it averages 60.6 against 31.4. The single biggest benchmark swing on the page is LongBench v2, 30% to 60.6%.
Qwen3.5-27B is the reasoning model in the pair, while Phi-4 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. Qwen3.5-27B gives you the larger context window at 262K, compared with 16K for Phi-4.
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 | Phi-4 | Qwen3.5-27B |
|---|---|---|
| AgenticQwen3.5-27B wins | ||
| Terminal-Bench 2.0 | 44% | 41.6% |
| BrowseComp | 35% | 61% |
| OSWorld-Verified | 34% | 56.2% |
| tau2-bench | — | 79% |
| CodingQwen3.5-27B wins | ||
| HumanEval | 82.6% | — |
| SWE-bench Pro | 55% | — |
| SWE-bench Verified | — | 72.4% |
| LiveCodeBench | — | 80.7% |
| Multimodal & GroundedQwen3.5-27B wins | ||
| MMMU-Pro | 54% | 75% |
| OfficeQA Pro | 38% | — |
| ReasoningQwen3.5-27B wins | ||
| LongBench v2 | 30% | 60.6% |
| MRCRv2 | 33% | — |
| KnowledgeQwen3.5-27B wins | ||
| MMLU | 84.8% | — |
| GPQA | 56.1% | 85.5% |
| FrontierScience | 52% | — |
| MMLU-Pro | — | 86.1% |
| SuperGPQA | — | 65.6% |
| Instruction Following | ||
| IFEval | — | 95% |
| MultilingualQwen3.5-27B wins | ||
| MGSM | 80.6% | — |
| MMLU-ProX | 60% | 82.2% |
| Mathematics | ||
| MATH-500 | 94.6% | — |
Qwen3.5-27B is ahead overall, 70 to 49. The biggest single separator in this matchup is LongBench v2, where the scores are 30% and 60.6%.
Qwen3.5-27B has the edge for knowledge tasks in this comparison, averaging 80.6 versus 53.6. Inside this category, GPQA is the benchmark that creates the most daylight between them.
Qwen3.5-27B has the edge for coding in this comparison, averaging 77.6 versus 55. Phi-4 stays close enough that the answer can still flip depending on your workload.
Qwen3.5-27B has the edge for reasoning in this comparison, averaging 60.6 versus 31.4. Inside this category, LongBench v2 is the benchmark that creates the most daylight between them.
Qwen3.5-27B has the edge for agentic tasks in this comparison, averaging 51.6 versus 38.3. Inside this category, BrowseComp is the benchmark that creates the most daylight between them.
Qwen3.5-27B has the edge for multimodal and grounded tasks in this comparison, averaging 75 versus 46.8. Inside this category, MMMU-Pro is the benchmark that creates the most daylight between them.
Qwen3.5-27B has the edge for multilingual tasks in this comparison, averaging 82.2 versus 67.2. Inside this category, MMLU-ProX is the benchmark that creates the most daylight between them.
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