# Muse Spark 1.3 vs open-alternative-jev Qwen3.5-4B

> Side-by-side benchmark comparison for Muse Spark 1.3 and open-alternative-jev Qwen3.5-4B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/muse-spark-1-3-vs-open-alternative-jev
- Last updated: October 1, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Muse Spark 1.3 and open-alternative-jev Qwen3.5-4B.

## Summary

- Muse Spark 1.3 and open-alternative-jev Qwen3.5-4B 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 1.3 | open-alternative-jev Qwen3.5-4B |
|----------|----------|----------|
| Creator | Meta | IkerMoel |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | null |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 15 | 2 |
| Pricing (input/output) | $1.25 / $4.25 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Muse Spark 1.3 public-lane score: Coming soon
- open-alternative-jev Qwen3.5-4B public-lane score: Coming soon

| Benchmark | Muse Spark 1.3 | open-alternative-jev Qwen3.5-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.8% | Coming soon | Coming soon |
| JobBench | 64.9% | Coming soon | Coming soon |
| OSWorld 2.0 | 66.9% | Coming soon | Coming soon |
| DeepSearchQA | 89.4% | Coming soon | Coming soon |
| AutomationBench | 49.4% | Coming soon | Coming soon |
| ApprenticeBench | 19% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 72.3% | Coming soon | Coming soon |
| CWE-bench v1 | 55.0% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Muse Spark 1.3 public-lane score: Coming soon
- open-alternative-jev Qwen3.5-4B public-lane score: Coming soon

| Benchmark | Muse Spark 1.3 | open-alternative-jev Qwen3.5-4B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.8% | Coming soon | Coming soon |
| DeepSWE | 75.4% | Coming soon | Coming soon |
| SWE-Atlas Codebase QnA | 59.4% | Coming soon | Coming soon |
| CursorBench 4.0 | 41.6% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Muse Spark 1.3 public-lane score: 79.4 (#7/27)
- open-alternative-jev Qwen3.5-4B public-lane score: Coming soon

| Benchmark | Muse Spark 1.3 | open-alternative-jev Qwen3.5-4B | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 256K-512K | 98.5% | Coming soon | Coming soon |
| MRCR v2 512K-1M | 98.1% | Coming soon | Coming soon |
| JevBench 1.4 | Coming soon | 33.24 | Coming soon |
| JevBench 1.5 | Coming soon | 33.56 | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Muse Spark 1.3 public-lane score: Coming soon
- open-alternative-jev Qwen3.5-4B public-lane score: Coming soon

| Benchmark | Muse Spark 1.3 | open-alternative-jev Qwen3.5-4B | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | 15.9% | Coming soon | Coming soon |

## FAQ

### Can I compare Muse Spark 1.3 and open-alternative-jev Qwen3.5-4B 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 1.3 vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-muse-spark-1-3)
- [open-alternative-jev Qwen3.5-4B vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-open-alternative-jev)
- [Muse Spark 1.3 vs Muse Spark 1.2](/compare/muse-spark-1-2-vs-muse-spark-1-3)
- [open-alternative-jev Qwen3.5-4B vs Muse Spark 1.2](/compare/muse-spark-1-2-vs-open-alternative-jev)

## Explore More

- [Muse Spark 1.3 profile](/models/muse-spark-1-3)
- [open-alternative-jev Qwen3.5-4B profile](/models/open-alternative-jev)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)