# Muse Spark 1.2 vs Muse Spark 1.3

> Side-by-side benchmark comparison for Muse Spark 1.2 and Muse Spark 1.3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/muse-spark-1-2-vs-muse-spark-1-3
- Last updated: October 17, 2026

- Shared sourced benchmarks: 6
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Muse Spark 1.3 if you want the stronger benchmark profile. Muse Spark 1.2 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Muse Spark 1.3 leads overall 73 to 65.84.
- The clearest category separation is in reasoning, where the averages are 80.1 for Muse Spark 1.2 and 82.9 for Muse Spark 1.3.
- The biggest single benchmark swing is DeepSWE in Coding, with scores of 59.3% and 75.4%.

## Model Snapshot

| Property | Muse Spark 1.2 | Muse Spark 1.3 |
|----------|----------|----------|
| Creator | Meta | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 65.84 | null |
| Benchmarks Covered | 9 | 20 |
| Pricing (input/output) | $1.25 / $4.25 | $1.25 / $4.25 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Muse Spark 1.2 public-lane score: 60.9 (Supported · #25/128)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Muse Spark 1.2 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 82.9% | 88.8% | Muse Spark 1.3 |
| Terminal-Bench 2.1 (Vals) | 69.7% | 72.3% | Muse Spark 1.3 |
| MazeBench | 0% | 0% | Tie |
| 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 |
| CWE-bench v1 | Coming soon | 55.0% | Coming soon |

### Coding

- Winner: Not comparable
- Muse Spark 1.2 public-lane score: 52.6 (Supported · #40/150)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Muse Spark 1.2 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 82.9% | 88.8% | Muse Spark 1.3 |
| DeepSWE | 59.3% | 75.4% | Muse Spark 1.3 |
| VulcanBench v3 | 87.0% | Coming soon | Coming soon |
| FrontierSWE v2 | 12.0% | 25.8% | Muse Spark 1.3 |
| SWE-bench (Vals) | 86.6% | Coming soon | Coming soon |
| SWE-Atlas Codebase QnA | Coming soon | 59.4% | Coming soon |
| CursorBench 4.0 | Coming soon | 41.6% | Coming soon |
| Bug Hunt Bench | Coming soon | 32.2 fixes | Coming soon |

### Reasoning

- Winner: Not comparable
- Muse Spark 1.2 public-lane score: 80.1 (Unranked · 2 rankable rows)
- Muse Spark 1.3 public-lane score: 82.9 (#6/28)

| Benchmark | Muse Spark 1.2 | 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 |

### Knowledge

- Winner: Not comparable
- Muse Spark 1.2 public-lane score: 65.4 (Supported · #35/184)
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Muse Spark 1.2 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro (Vals) | 88.3% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Muse Spark 1.2 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: Coming soon

| Benchmark | Muse Spark 1.2 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 15.9% | Coming soon |

### Mathematics

- Winner: Not comparable
- Muse Spark 1.2 public-lane score: Coming soon
- Muse Spark 1.3 public-lane score: 78.5 (Unranked · 2 rankable rows)

| Benchmark | Muse Spark 1.2 | Muse Spark 1.3 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 74.035% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 46.341% | Coming soon |

## FAQ

### Which is better overall, Muse Spark 1.2 or Muse Spark 1.3?

Muse Spark 1.3 is ahead overall on BenchLM right now.

### Where is the biggest gap between Muse Spark 1.2 and Muse Spark 1.3?

The widest category gap is in reasoning, where the averages are 80.1 for Muse Spark 1.2 and 82.9 for Muse Spark 1.3.

### How many benchmarks does Muse Spark 1.2 cover on BenchLM?

Muse Spark 1.2 currently has 9 sourced benchmark scores on BenchLM.

### How many benchmarks does Muse Spark 1.3 cover on BenchLM?

Muse Spark 1.3 currently has 20 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Muse Spark 1.2 vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-muse-spark-1-2)
- [Muse Spark 1.3 vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-muse-spark-1-3)
- [Muse Spark 1.2 vs Muse Spark](/compare/muse-spark-vs-muse-spark-1-2)
- [Muse Spark 1.3 vs Muse Spark](/compare/muse-spark-vs-muse-spark-1-3)

## Explore More

- [Muse Spark 1.2 profile](/models/muse-spark-1-2)
- [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)