# Qwen3.5-27B vs Solar Open 2

> Side-by-side benchmark comparison for Qwen3.5-27B and Solar Open 2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/qwen3-5-27b-vs-solar-open-2
- Last updated: September 10, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Qwen3.5-27B and Solar Open 2 share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Solar Open 2 has the larger published context window at 1M.

## Model Snapshot

| Property | Qwen3.5-27B | Solar Open 2 |
|----------|----------|----------|
| Creator | Alibaba | Upstage |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 1M |
| Independent public score (not head-to-head) | 55.34 | null |
| Benchmarks Covered | 16 | 11 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Qwen3.5-27B public-lane score: 46.7 (Estimated · #73/152)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Qwen3.5-27B | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 41.6% | Coming soon | Coming soon |
| BrowseComp | 61% | Coming soon | Coming soon |
| OSWorld-Verified | 56.2% | Coming soon | Coming soon |
| Gert Labs | 39.41% | Coming soon | Coming soon |
| terminalBenchHard | Coming soon | 28.3% | Coming soon |
| APEX-Agents | Coming soon | 16.6% | Coming soon |
| MCP Atlas | Coming soon | 58.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Qwen3.5-27B public-lane score: 50 (Estimated · #60/151)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Qwen3.5-27B | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 72.4% | 70.4% | Qwen3.5-27B |
| SWE-Rebench | 58.9% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 92.4% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Qwen3.5-27B public-lane score: 70.5 (Unranked · 3 rankable rows)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Qwen3.5-27B | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 82.3% | Coming soon | Coming soon |
| MMVU | 73.3% | Coming soon | Coming soon |
| MathVision | 86.0% | Coming soon | Coming soon |
| V* | 93.7% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Qwen3.5-27B public-lane score: 51.6 (Unranked · 3 rankable rows)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Qwen3.5-27B | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 60.6% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Qwen3.5-27B public-lane score: 47.2 (Supported · #98/183)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Qwen3.5-27B | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 86.1% | 86.2% | Solar Open 2 |
| SuperGPQA | 65.6% | Coming soon | Coming soon |
| GPQA | 85.5% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 86.3% | Coming soon |
| HLE w/o tools | Coming soon | 28.8% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Qwen3.5-27B public-lane score: 92.8 (#13/123)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Qwen3.5-27B | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 95% | Coming soon | Coming soon |
| IFBench | Coming soon | 80% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Qwen3.5-27B public-lane score: 36.8 (#9/12)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Qwen3.5-27B | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | 82.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Qwen3.5-27B public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Qwen3.5-27B | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| HMMT Feb 2026 | Coming soon | 93.9% | Coming soon |
| AIME26 | Coming soon | 95.7% | Coming soon |

## FAQ

### Is there enough evidence to pick between Qwen3.5-27B and Solar Open 2?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Qwen3.5-27B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-qwen3-5-27b)
- [Solar Open 2 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-solar-open-2)
- [Qwen3.5-27B vs GPT-6 Astra](/compare/gpt-6-astra-vs-qwen3-5-27b)
- [Solar Open 2 vs GPT-6 Astra](/compare/gpt-6-astra-vs-solar-open-2)

## Explore More

- [Qwen3.5-27B profile](/models/qwen3-5-27b)
- [Solar Open 2 profile](/models/solar-open-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)