# Muse Spark vs Ornith-1.5-9B

> Side-by-side benchmark comparison for Muse Spark and Ornith-1.5-9B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/muse-spark-vs-ornith-1-5-9b
- Last updated: October 2, 2026

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

## Quick Verdict

Muse Spark leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Muse Spark has the higher overall point estimate 61.25 to 28.63. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in agentic, where the averages are 51.8 for Muse Spark and 18 for Ornith-1.5-9B.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 50.4% and 20.2%.

## Model Snapshot

| Property | Muse Spark | Ornith-1.5-9B |
|----------|----------|----------|
| Creator | Meta | Ornith AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 262K |
| Overall Score | 61.25 | 28.63 |
| Benchmarks Covered | 27 | 16 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Muse Spark public-lane score: 51.8 (Supported · #41/119)
- Ornith-1.5-9B public-lane score: 18 (Estimated · #101/119)

| Benchmark | Muse Spark | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 59% | Coming soon | Coming soon |
| τ²-bench results | 91.5% | Coming soon | Coming soon |
| DeepSearchQA | 74.8% | Coming soon | Coming soon |
| CyberGym | 43.5% | Coming soon | Coming soon |
| Claw-Eval | 63.8% | 66.5% | Ornith-1.5-9B |
| Terminal-Bench 2.1 | Coming soon | 46.2% | Coming soon |
| HLE w/ tools | Coming soon | 30.5% | Coming soon |
| MCP Atlas | Coming soon | 54.2% | Coming soon |
| Toolathlon-Verified | Coming soon | 41.2% | Coming soon |
| WideResearch | Coming soon | 59.5% | Coming soon |
| BrowseComp | Coming soon | 56.4% | Coming soon |

### Coding

- Winner: Not comparable
- Muse Spark public-lane score: 53.2 (Supported · #37/144)
- Ornith-1.5-9B public-lane score: Coming soon

| Benchmark | Muse Spark | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 77.4% | 70.6% | Muse Spark |
| SWE-bench Pro | 52.4% | 47.5% | Muse Spark |
| LiveCodeBench Pro | 80.0% | Coming soon | Coming soon |
| Vibe Code Bench | 19.67% | Coming soon | Coming soon |
| SWE-bench (Vals) | 74.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 46.2% | Coming soon |
| SWE Multilingual | Coming soon | 54.4% | Coming soon |
| NL2Repo | Coming soon | 32.4% | Coming soon |

### Reasoning

- Winner: Not comparable
- Muse Spark public-lane score: 53.4 (Unranked · 3 rankable rows)
- Ornith-1.5-9B public-lane score: Coming soon

| Benchmark | Muse Spark | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 42.5% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Muse Spark public-lane score: 78.5 (#14/49)
- Ornith-1.5-9B public-lane score: Coming soon

| Benchmark | Muse Spark | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 86.4% | Coming soon | Coming soon |
| MMMU-Pro | 80.4% | Coming soon | Coming soon |
| ERQA | 64.7% | Coming soon | Coming soon |
| SimpleVQA | 71.3% | Coming soon | Coming soon |
| ScreenSpot Pro | 84.1% | Coming soon | Coming soon |
| ZeroBench | 33.0% | Coming soon | Coming soon |
| MedXpertQA (MM) | 78.4% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- Muse Spark public-lane score: 60.6 (Supported · #40/171)
- Ornith-1.5-9B public-lane score: 30.6 (Estimated · #134/171)

| Benchmark | Muse Spark | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 89.5% | 86.4% | Muse Spark |
| HLE | 50.4% | 20.2% | Muse Spark |
| HLE w/o tools | 42.8% | 20.2% | Muse Spark |
| HealthBench Hard | 42.8% | Coming soon | Coming soon |
| MedXpertQA (Text) | 52.6% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 89.6% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 87.3% | Coming soon | Coming soon |
| GPQA | Coming soon | 86.4% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Muse Spark public-lane score: 91.9 (#8/125)
- Ornith-1.5-9B public-lane score: Coming soon

### Mathematics

- Winner: Not comparable
- Muse Spark public-lane score: 55.1 (Unranked · 2 rankable rows)
- Ornith-1.5-9B public-lane score: Coming soon

| Benchmark | Muse Spark | Ornith-1.5-9B | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 39.000% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 14.600% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Muse Spark or Ornith-1.5-9B?

Muse Spark has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Muse Spark and Ornith-1.5-9B?

The widest category gap is in agentic, where the averages are 51.8 for Muse Spark and 18 for Ornith-1.5-9B.

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

Muse Spark currently has 27 sourced benchmark scores on BenchLM.

### How many benchmarks does Ornith-1.5-9B cover on BenchLM?

Ornith-1.5-9B currently has 16 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Muse Spark vs Muse Spark 1.1](/compare/muse-spark-vs-muse-spark-1-1)
- [Ornith-1.5-9B vs Muse Spark 1.1](/compare/muse-spark-1-1-vs-ornith-1-5-9b)
- [Muse Spark vs Muse Spark 1.2](/compare/muse-spark-vs-muse-spark-1-2)
- [Ornith-1.5-9B vs Muse Spark 1.2](/compare/muse-spark-1-2-vs-ornith-1-5-9b)

## Explore More

- [Muse Spark profile](/models/muse-spark)
- [Ornith-1.5-9B profile](/models/ornith-1-5-9b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)