# Muse Spark 1.2 vs Qwen3.5 397B

> Side-by-side benchmark comparison for Muse Spark 1.2 and Qwen3.5 397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/muse-spark-1-2-vs-qwen3-5-397b
- Last updated: September 18, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Muse Spark 1.2 and Qwen3.5 397B.

## Summary

- Muse Spark 1.2 and Qwen3.5 397B do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Muse Spark 1.2 | Qwen3.5 397B |
|----------|----------|----------|
| Creator | Meta | Alibaba |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 128K |
| Independent public score (not head-to-head) | 70.28 | 55.09 |
| Benchmarks Covered | 8 | 38 |
| Pricing (input/output) | $1.25 / $4.25 | $0.60 / $3.60 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Muse Spark 1.2 public-lane score: 61 (Supported · #16/154)
- Qwen3.5 397B public-lane score: 46.8 (Estimated · #77/154)

| Benchmark | Muse Spark 1.2 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 82.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 69.7% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 52.5% | Coming soon |
| BrowseComp | Coming soon | 62% | Coming soon |
| Claw-Eval | Coming soon | 56.8% | Coming soon |
| QwenClawBench | Coming soon | 51.8% | Coming soon |
| τ³-bench results | Coming soon | 68.4% | Coming soon |
| VITA-Bench | Coming soon | 43.7% | Coming soon |
| DeepPlanning | Coming soon | 37.6% | Coming soon |
| Toolathlon | Coming soon | 36.3% | Coming soon |
| MCP Atlas | Coming soon | 46.1% | Coming soon |
| MCP-Tasks | Coming soon | 74.2% | Coming soon |
| WideResearch | Coming soon | 74.0% | Coming soon |
| Gert Labs | Coming soon | 46.76% | Coming soon |
| ResearchClawBench | Coming soon | 14.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Muse Spark 1.2 public-lane score: 60 (Supported · #21/154)
- Qwen3.5 397B public-lane score: 50.6 (Estimated · #59/154)

| Benchmark | Muse Spark 1.2 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 82.9% | Coming soon | Coming soon |
| DeepSWE | 59.3% | Coming soon | Coming soon |
| VulcanBench v3 | 87.0% | Coming soon | Coming soon |
| FrontierSWE v2 | 12.0% | Coming soon | Coming soon |
| SWE-bench (Vals) | 86.6% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 76.2% | Coming soon |
| LiveCodeBench v6 | Coming soon | 83.6% | Coming soon |
| SWE-bench Pro | Coming soon | 50.9% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Muse Spark 1.2 public-lane score: Coming soon
- Qwen3.5 397B public-lane score: 62.9 (#27/48)

| Benchmark | Muse Spark 1.2 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 79% | Coming soon |
| MathVision | Coming soon | 88.6% | Coming soon |
| CharXiv | Coming soon | 80.8% | Coming soon |
| VideoMMMU | Coming soon | 84.7% | Coming soon |
| ScreenSpot Pro | Coming soon | 65.6% | Coming soon |
| V* | Coming soon | 95.8% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Muse Spark 1.2 public-lane score: 75.3 (Unranked · 2 rankable rows)
- Qwen3.5 397B public-lane score: 59.8 (Unranked · 2 rankable rows)

| Benchmark | Muse Spark 1.2 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 63.2% | Coming soon |
| AI-Needle | Coming soon | 68.7% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Muse Spark 1.2 public-lane score: 70.7 (Estimated · #10/184)
- Qwen3.5 397B public-lane score: 50.3 (Estimated · #84/184)

| Benchmark | Muse Spark 1.2 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro (Vals) | 88.3% | Coming soon | Coming soon |
| GPQA | Coming soon | 88.4% | Coming soon |
| SuperGPQA | Coming soon | 70.4% | Coming soon |
| MMLU-Pro | Coming soon | 87.8% | Coming soon |
| MMLU-Redux | Coming soon | 94.9% | Coming soon |
| C-Eval | Coming soon | 93% | Coming soon |
| HLE | Coming soon | 28.7% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Muse Spark 1.2 public-lane score: Coming soon
- Qwen3.5 397B public-lane score: 0 (#124/124)

| Benchmark | Muse Spark 1.2 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 92.6% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Muse Spark 1.2 public-lane score: Coming soon
- Qwen3.5 397B public-lane score: 69.7 (#5/12)

| Benchmark | Muse Spark 1.2 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 84.7% | Coming soon |
| NOVA-63 | Coming soon | 59.1% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Muse Spark 1.2 public-lane score: Coming soon
- Qwen3.5 397B public-lane score: 73.5 (Unranked · 5 rankable rows)

| Benchmark | Muse Spark 1.2 | Qwen3.5 397B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | Coming soon | 93.3% | Coming soon |
| HMMT Feb 2025 | Coming soon | 94.8% | Coming soon |
| HMMT Nov 2025 | Coming soon | 92.7% | Coming soon |
| HMMT Feb 2026 | Coming soon | 87.9% | Coming soon |
| MMAnswerBench | Coming soon | 80.9% | Coming soon |

## FAQ

### Can I compare Muse Spark 1.2 and Qwen3.5 397B on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Muse Spark 1.2 vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-muse-spark-1-2)
- [Qwen3.5 397B vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-qwen3-5-397b)
- [Muse Spark 1.2 vs Muse Spark](/compare/muse-spark-vs-muse-spark-1-2)
- [Qwen3.5 397B vs Muse Spark](/compare/muse-spark-vs-qwen3-5-397b)

## Explore More

- [Muse Spark 1.2 profile](/models/muse-spark-1-2)
- [Qwen3.5 397B profile](/models/qwen3-5-397b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)