# Mistral Small 3.1 vs Qwen3.5-27B

> Side-by-side benchmark comparison for Mistral Small 3.1 and Qwen3.5-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mistral-small-3-1-vs-qwen3-5-27b
- Last updated: October 14, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Qwen3.5-27B leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Qwen3.5-27B has the higher overall point estimate 49.06 to 46. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in multimodal & grounded, where the averages are 18.8 for Mistral Small 3.1 and 67.5 for Qwen3.5-27B.
- The biggest single benchmark swing is GPQA in Knowledge, with scores of 46.0% and 85.5%.
- Qwen3.5-27B also has the larger context window at 262K.

## Model Snapshot

| Property | Mistral Small 3.1 | Qwen3.5-27B |
|----------|----------|----------|
| Creator | Mistral | Alibaba |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 262K |
| Overall Score | null | 49.06 |
| Benchmarks Covered | 7 | 20 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Mistral Small 3.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 37.4 (Estimated · #73/124)

| Benchmark | Mistral Small 3.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | Coming soon | 41.6% | Coming soon |
| BrowseComp | Coming soon | 61% | Coming soon |
| OSWorld-Verified | Coming soon | 56.2% | Coming soon |
| Gert Labs | Coming soon | 39.41% | Coming soon |

### Coding

- Winner: Not comparable
- Mistral Small 3.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 32.1 (Estimated · #85/148)

| Benchmark | Mistral Small 3.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| HumanEval | 88.4% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 72.4% | Coming soon |
| LiveCodeBench v6 | Coming soon | 80.7% | Coming soon |
| SWE-Rebench | Coming soon | 58.9% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 41.6% | Coming soon |

### Reasoning

- Winner: Not comparable
- Mistral Small 3.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 71.1 (Unranked · 3 rankable rows)

| Benchmark | Mistral Small 3.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 60.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Mistral Small 3.1 public-lane score: 18.8 (Unranked · 2 rankable rows)
- Qwen3.5-27B public-lane score: 67.5 (#37/54)

| Benchmark | Mistral Small 3.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 64.0% | 82.3% | Qwen3.5-27B |
| MMMU-Pro | 49.3% | 75% | Qwen3.5-27B |
| MMVU | Coming soon | 73.3% | Coming soon |
| CharXiv | Coming soon | 79.5% | Coming soon |
| MathVision | Coming soon | 86.0% | Coming soon |
| V* | Coming soon | 93.7% | Coming soon |

### Knowledge

- Winner: Not comparable
- Mistral Small 3.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 45.8 (Supported · #92/181)

| Benchmark | Mistral Small 3.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMLU | 80.6% | Coming soon | Coming soon |
| MMLU-Pro | 66.8% | 86.1% | Qwen3.5-27B |
| GPQA | 46.0% | 85.5% | Qwen3.5-27B |
| SimpleQA | 10.4% | Coming soon | Coming soon |
| SuperGPQA | Coming soon | 65.6% | Coming soon |

### Multilingual

- Winner: Not comparable
- Mistral Small 3.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 87.1 (#10/17)

| Benchmark | Mistral Small 3.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 82.2% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Mistral Small 3.1 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 92.9 (#14/128)

| Benchmark | Mistral Small 3.1 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 95% | Coming soon |

## FAQ

### Which is better overall, Mistral Small 3.1 or Qwen3.5-27B?

Qwen3.5-27B has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Mistral Small 3.1 and Qwen3.5-27B?

The widest category gap is in multimodal & grounded, where the averages are 18.8 for Mistral Small 3.1 and 67.5 for Qwen3.5-27B.

### How many benchmarks does Mistral Small 3.1 cover on BenchLM?

Mistral Small 3.1 currently has 7 sourced benchmark scores on BenchLM.

### How many benchmarks does Qwen3.5-27B cover on BenchLM?

Qwen3.5-27B currently has 20 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Mistral Small 3.1 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mistral-small-3-1)
- [Qwen3.5-27B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-qwen3-5-27b)
- [Mistral Small 3.1 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-mistral-small-3-1)
- [Qwen3.5-27B vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-qwen3-5-27b)

## Explore More

- [Mistral Small 3.1 profile](/models/mistral-small-3-1)
- [Qwen3.5-27B profile](/models/qwen3-5-27b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)