# Composer 2 vs Muse Spark 1.3

> Side-by-side benchmark comparison for Composer 2 and Muse Spark 1.3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/composer-2-vs-muse-spark-1-3
- 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 Composer 2 and Muse Spark 1.3.

## Summary

- Composer 2 and Muse Spark 1.3 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 | Composer 2 | Muse Spark 1.3 |
|----------|----------|----------|
| Creator | Cursor | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 200K | 1M |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 5 | 12 |
| Pricing (input/output) | $0.50 / $2.50 | $1.25 / $4.25 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Composer 2 public-lane score: 49.3 (Estimated · #63/154)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Composer 2 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 61.7% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.8% | Coming soon |
| JobBench | Coming soon | 64.9% | Coming soon |
| OSWorld 2.0 | Coming soon | 66.9% | Coming soon |
| DeepSearchQA | Coming soon | 89.4% | Coming soon |
| AutomationBench | Coming soon | 49.4% | Coming soon |
| ApprenticeBench | Coming soon | 19% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Composer 2 public-lane score: 49.3 (Estimated · #67/154)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Composer 2 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| SWE Multilingual | 73.7% | Coming soon | Coming soon |
| SWE-Rebench | 58% | Coming soon | Coming soon |
| React Native Evals | 96.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 61.7% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 88.8% | Coming soon |
| DeepSWE | Coming soon | 75.4% | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 59.4% | Coming soon |
| cursorBench40 | Coming soon | 41.6% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Composer 2 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: 78 (#5/20)

| Benchmark | Composer 2 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| MRCR v2 256K-512K | Coming soon | 98.5% | Coming soon |
| MRCR v2 512K-1M | Coming soon | 98.1% | Coming soon |

## FAQ

### Can I compare Composer 2 and Muse Spark 1.3 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

- [Composer 2 vs Composer 2.5](/compare/composer-2-vs-composer-2-5)
- [Muse Spark 1.3 vs Composer 2.5](/compare/composer-2-5-vs-muse-spark-1-3)
- [Composer 2 vs Composer 2 Fast](/compare/composer-2-vs-composer-2-fast)
- [Muse Spark 1.3 vs Composer 2 Fast](/compare/composer-2-fast-vs-muse-spark-1-3)

## Explore More

- [Composer 2 profile](/models/composer-2)
- [Muse Spark 1.3 profile](/models/muse-spark-1-3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)