# Claude Opus 4.6 vs Qwen3.5-27B

> Side-by-side benchmark comparison for Claude Opus 4.6 and Qwen3.5-27B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-6-vs-qwen3-5-27b
- Last updated: September 28, 2026

- Shared sourced benchmarks: 9
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Claude Opus 4.6 if you want the stronger benchmark profile. Qwen3.5-27B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Opus 4.6 leads overall 63.61 to 43.76.
- The clearest category separation is in instruction following, where the averages are 51 for Claude Opus 4.6 and 91.5 for Qwen3.5-27B.
- The biggest single benchmark swing is SuperGPQA in Knowledge, with scores of 95% and 65.6%.
- Qwen3.5-27B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Claude Opus 4.6 also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Opus 4.6 | Qwen3.5-27B |
|----------|----------|----------|
| Creator | Anthropic | Alibaba |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | 63.61 | 43.76 |
| Benchmarks Covered | 34 | 16 |
| Pricing (input/output) | $5.00 / $25.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Claude Opus 4.6 public-lane score: 44.4 (Supported · #44/117)
- Qwen3.5-27B public-lane score: 32.5 (Estimated · #74/117)

| Benchmark | Claude Opus 4.6 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 65.4% | 41.6% | Claude Opus 4.6 |
| BrowseComp | 83.7% | 61% | Claude Opus 4.6 |
| OSWorld-Verified | 72.7% | 56.2% | Claude Opus 4.6 |
| Claw-Eval | 70.4% | Coming soon | Coming soon |
| DeepSearchQA | 73.7% | Coming soon | Coming soon |
| CyberGym | 66.6% | Coming soon | Coming soon |
| Gert Labs | 61.85% | 39.41% | Claude Opus 4.6 |
| ResearchClawBench | 19.9% | Coming soon | Coming soon |
| JobBench | 36.7% | Coming soon | Coming soon |
| ApprenticeBench | 5% | Coming soon | Coming soon |

### Coding

- Winner: Directional only
- Claude Opus 4.6 public-lane score: 49.5 (Supported · #41/142)
- Qwen3.5-27B public-lane score: 32.4 (Estimated · #86/142)

| Benchmark | Claude Opus 4.6 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.8% | 72.4% | Claude Opus 4.6 |
| SWE-bench Verified* | 75.6% | Coming soon | Coming soon |
| LiveCodeBench Pro | 70.7% | Coming soon | Coming soon |
| SWE-bench Pro | 53.4% | Coming soon | Coming soon |
| SWE-Rebench | 65.3% | 58.9% | Claude Opus 4.6 |
| React Native Evals | 84.1% | Coming soon | Coming soon |
| Vibe Code Bench | 57.57% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 26.9% | Coming soon | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Opus 4.6 public-lane score: 68.3 (Unranked · 2 rankable rows)
- Qwen3.5-27B public-lane score: 52.7 (Unranked · 3 rankable rows)

| Benchmark | Claude Opus 4.6 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 60.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Opus 4.6 public-lane score: 60.6 (#30/50)
- Qwen3.5-27B public-lane score: 71.6 (Unranked · 3 rankable rows)

| Benchmark | Claude Opus 4.6 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 77.3% | Coming soon | Coming soon |
| ERQA | 51.6% | Coming soon | Coming soon |
| ScreenSpot Pro | 83.1% | Coming soon | Coming soon |
| MedXpertQA (MM) | 64.8% | Coming soon | Coming soon |
| 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
- Claude Opus 4.6 public-lane score: 58.7 (Estimated · #42/168)
- Qwen3.5-27B public-lane score: 42.3 (Supported · #87/168)

| Benchmark | Claude Opus 4.6 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 91.3% | 85.5% | Claude Opus 4.6 |
| GPQA-D | 89.2% | Coming soon | Coming soon |
| SuperGPQA | 95% | 65.6% | Claude Opus 4.6 |
| MMLU-Pro | 82% | 86.1% | Qwen3.5-27B |
| MMLU-Pro (Arcee) | 89.1% | Coming soon | Coming soon |
| HLE | 53% | Coming soon | Coming soon |
| HLE w/o tools | 40% | Coming soon | Coming soon |
| HealthBench Hard | 14.8% | Coming soon | Coming soon |
| MedXpertQA (Text) | 52.1% | Coming soon | Coming soon |

### Multilingual

- Winner: Not comparable
- Claude Opus 4.6 public-lane score: Coming soon
- Qwen3.5-27B public-lane score: 36.8 (#9/12)

| Benchmark | Claude Opus 4.6 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 82.2% | Coming soon |

### Instruction Following

- Winner: Directional only
- Claude Opus 4.6 public-lane score: 51 (#79/124)
- Qwen3.5-27B public-lane score: 91.5 (#13/124)

| Benchmark | Claude Opus 4.6 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 95% | Coming soon |

### Mathematics

- Winner: Not comparable
- Claude Opus 4.6 public-lane score: 58.5 (Unranked · 3 rankable rows)
- Qwen3.5-27B public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | Qwen3.5-27B | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | 99.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 40.700% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 22.900% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.6 or Qwen3.5-27B?

Claude Opus 4.6 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.6 and Qwen3.5-27B?

The widest category gap is in instruction following, where the averages are 51 for Claude Opus 4.6 and 91.5 for Qwen3.5-27B.

### How many benchmarks does Claude Opus 4.6 cover on BenchLM?

Claude Opus 4.6 currently has 34 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

- [Claude Opus 4.6 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-vs-claude-opus-4-6-thinking)
- [Qwen3.5-27B vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-thinking-vs-qwen3-5-27b)
- [Claude Opus 4.6 vs GPT-6 Astra](/compare/claude-opus-4-6-vs-gpt-6-astra)
- [Qwen3.5-27B vs GPT-6 Astra](/compare/gpt-6-astra-vs-qwen3-5-27b)

## Explore More

- [Claude Opus 4.6 profile](/models/claude-opus-4-6)
- [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)