# DeepSeek V3 vs Qwen3.5-27B

> Side-by-side benchmark comparison for DeepSeek V3 and Qwen3.5-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v3-vs-qwen3-5-27b
- Last updated: September 28, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Qwen3.5-27B if you want the stronger benchmark profile. DeepSeek V3 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Qwen3.5-27B leads overall 43.76 to 31.91.
- The clearest category separation is in instruction following, where the averages are 38.2 for DeepSeek V3 and 91.5 for Qwen3.5-27B.
- The biggest single benchmark swing is SWE-bench Verified in Coding, with scores of 42% and 72.4%.
- Qwen3.5-27B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Qwen3.5-27B also has the larger context window at 262K.

## Model Snapshot

| Property | DeepSeek V3 | Qwen3.5-27B |
|----------|----------|----------|
| Creator | DeepSeek | Alibaba |
| Type | Open Weight | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 262K |
| Overall Score | 31.91 | 43.76 |
| Benchmarks Covered | 6 | 16 |
| Pricing (input/output) | $0.27 / $1.10 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- DeepSeek V3 public-lane score: 11.9 (Estimated · #113/117)
- Qwen3.5-27B public-lane score: 32.5 (Estimated · #74/117)

| Benchmark | DeepSeek V3 | 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: Directional only
- DeepSeek V3 public-lane score: 19 (Estimated · #130/142)
- Qwen3.5-27B public-lane score: 32.4 (Estimated · #86/142)

| Benchmark | DeepSeek V3 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench | 37.6% | Coming soon | Coming soon |
| SWE-bench Verified | 42% | 72.4% | Qwen3.5-27B |
| SWE-Rebench | Coming soon | 58.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- DeepSeek V3 public-lane score: 42.3 (Unranked · 2 rankable rows)
- Qwen3.5-27B public-lane score: 52.7 (Unranked · 3 rankable rows)

| Benchmark | DeepSeek V3 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 60.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- DeepSeek V3 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 71.6 (Unranked · 3 rankable rows)

| Benchmark | DeepSeek V3 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMMU | Coming soon | 82.3% | Coming soon |
| MMVU | Coming soon | 73.3% | Coming soon |
| MathVision | Coming soon | 86.0% | Coming soon |
| V* | Coming soon | 93.7% | Coming soon |

### Knowledge

- Winner: Directional only
- DeepSeek V3 public-lane score: 30.3 (Estimated · #139/168)
- Qwen3.5-27B public-lane score: 42.3 (Supported · #87/168)

| Benchmark | DeepSeek V3 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 59.1% | 85.5% | Qwen3.5-27B |
| MMLU-Pro | 75.9% | 86.1% | Qwen3.5-27B |
| SuperGPQA | Coming soon | 65.6% | Coming soon |

### Multilingual

- Winner: Not comparable
- DeepSeek V3 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 36.8 (#9/12)

| Benchmark | DeepSeek V3 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 82.2% | Coming soon |

### Instruction Following

- Winner: Directional only
- DeepSeek V3 public-lane score: 38.2 (#103/124)
- Qwen3.5-27B public-lane score: 91.5 (#13/124)

| Benchmark | DeepSeek V3 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 86.1% | 95% | Qwen3.5-27B |

### Mathematics

- Winner: Not comparable
- DeepSeek V3 public-lane score: 26 (Unranked · 1 rankable row)
- Qwen3.5-27B public-lane score: Coming soon

| Benchmark | DeepSeek V3 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 1.724% | Coming soon | Coming soon |

## FAQ

### Which is better overall, DeepSeek V3 or Qwen3.5-27B?

Qwen3.5-27B is ahead overall on BenchLM right now.

### Where is the biggest gap between DeepSeek V3 and Qwen3.5-27B?

The widest category gap is in instruction following, where the averages are 38.2 for DeepSeek V3 and 91.5 for Qwen3.5-27B.

### How many benchmarks does DeepSeek V3 cover on BenchLM?

DeepSeek V3 currently has 6 sourced benchmark scores on BenchLM.

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

Qwen3.5-27B currently has 16 sourced benchmark scores on BenchLM.

## Related Comparisons

- [DeepSeek V3 vs GPT-6 Astra](/compare/deepseek-v3-vs-gpt-6-astra)
- [Qwen3.5-27B vs GPT-6 Astra](/compare/gpt-6-astra-vs-qwen3-5-27b)
- [DeepSeek V3 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-deepseek-v3)
- [Qwen3.5-27B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-qwen3-5-27b)

## Explore More

- [DeepSeek V3 profile](/models/deepseek-v3)
- [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)