# Claude Sonnet 5 vs Muse Spark

> Side-by-side benchmark comparison for Claude Sonnet 5 and Muse Spark across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-sonnet-5-vs-muse-spark
- Last updated: September 18, 2026

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

## Quick Verdict

Pick Claude Sonnet 5 if you want the stronger benchmark profile. Muse Spark only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Sonnet 5 leads overall 69.68 to 67.51.
- The clearest category separation is in reasoning, where the averages are 77.4 for Claude Sonnet 5 and 45.1 for Muse Spark.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 80.4% and 59%.
- Claude Sonnet 5 also has the larger context window at 1M.

## Model Snapshot

| Property | Claude Sonnet 5 | Muse Spark |
|----------|----------|----------|
| Creator | Anthropic | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 262K |
| Overall Score | 69.68 | 67.51 |
| Benchmarks Covered | 26 | 24 |
| Pricing (input/output) | $2.00 / $10.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Claude Sonnet 5
- Claude Sonnet 5 public-lane score: 65.9 (Supported · #11/154)
- Muse Spark public-lane score: 58.2 (Supported · #32/154)

| Benchmark | Claude Sonnet 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 14.6% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 80.4% | 59% | Claude Sonnet 5 |
| BrowseComp | 84.7% | Coming soon | Coming soon |
| HLE w/ tools | 57.4% | Coming soon | Coming soon |
| OSWorld-Verified | 81.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 74.5% | Coming soon | Coming soon |
| ApprenticeBench | 16% | Coming soon | Coming soon |
| τ²-bench results | Coming soon | 91.5% | Coming soon |
| DeepSearchQA | Coming soon | 74.8% | Coming soon |
| CyberGym | Coming soon | 43.5% | Coming soon |
| Claw-Eval | Coming soon | 63.8% | Coming soon |

### Coding

- Winner: Claude Sonnet 5
- Claude Sonnet 5 public-lane score: 63.9 (Supported · #13/154)
- Muse Spark public-lane score: 58.8 (Supported · #26/154)

| Benchmark | Claude Sonnet 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 85.2% | 77.4% | Claude Sonnet 5 |
| SWE-bench Pro | 63.2% | 52.4% | Claude Sonnet 5 |
| SWE Multilingual | 78.3% | Coming soon | Coming soon |
| SWE Multimodal | 28.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 80.4% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 42.7% | Coming soon | Coming soon |
| cursorBench32 | 61.5% | Coming soon | Coming soon |
| VulcanBench CII v1 | 89.2% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 82.4% | Coming soon | Coming soon |
| SWE-bench (Vals) | 79.6% | Coming soon | Coming soon |
| cursorBench40 | 34.1% | Coming soon | Coming soon |
| LiveCodeBench Pro | Coming soon | 80.0% | Coming soon |
| Vibe Code Bench | Coming soon | 19.67% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Claude Sonnet 5 public-lane score: 77.4 (#14/48)
- Muse Spark public-lane score: 77.5 (#13/48)

| Benchmark | Claude Sonnet 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 88.3% | 86.4% | Claude Sonnet 5 |
| CharXiv w/o tools | 77% | Coming soon | Coming soon |
| MMMU-Pro | Coming soon | 80.4% | Coming soon |
| ERQA | Coming soon | 64.7% | Coming soon |
| SimpleVQA | Coming soon | 71.3% | Coming soon |
| ScreenSpot Pro | Coming soon | 84.1% | Coming soon |
| ZeroBench | Coming soon | 33.0% | Coming soon |
| MedXpertQA (MM) | Coming soon | 78.4% | Coming soon |

### Reasoning

- Winner: Coming soon
- Claude Sonnet 5 public-lane score: 77.4 (Unranked · 2 rankable rows)
- Muse Spark public-lane score: 45.1 (Unranked · 3 rankable rows)

| Benchmark | Claude Sonnet 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 42.5% | Coming soon |

### Knowledge

- Winner: Claude Sonnet 5
- Claude Sonnet 5 public-lane score: 66.5 (Supported · #20/184)
- Muse Spark public-lane score: 65.3 (Supported · #24/184)

| Benchmark | Claude Sonnet 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| HLE | 57.4% | 50.4% | Claude Sonnet 5 |
| HLE w/o tools | 43.2% | 42.8% | Claude Sonnet 5 |
| HLE-Verified | 31.0% | Coming soon | Coming soon |
| LABBench2 | 80.1% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 88.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 87.5% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 89.5% | Coming soon |
| HealthBench Hard | Coming soon | 42.8% | Coming soon |
| MedXpertQA (Text) | Coming soon | 52.6% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Sonnet 5 public-lane score: Coming soon
- Muse Spark public-lane score: 91.9 (#8/124)

### Mathematics

- Winner: Coming soon
- Claude Sonnet 5 public-lane score: Coming soon
- Muse Spark public-lane score: 55.1 (Unranked · 2 rankable rows)

| Benchmark | Claude Sonnet 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 39.000% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 14.600% | Coming soon |

## FAQ

### Which is better overall, Claude Sonnet 5 or Muse Spark?

Claude Sonnet 5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Sonnet 5 and Muse Spark?

The widest category gap is in reasoning, where the averages are 77.4 for Claude Sonnet 5 and 45.1 for Muse Spark.

### How many benchmarks does Claude Sonnet 5 cover on BenchLM?

Claude Sonnet 5 currently has 26 sourced benchmark scores on BenchLM.

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

Muse Spark currently has 24 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Sonnet 5 vs Muse Spark 1.2](/compare/claude-sonnet-5-vs-muse-spark-1-2)
- [Muse Spark vs Muse Spark 1.2](/compare/muse-spark-vs-muse-spark-1-2)
- [Claude Sonnet 5 vs Muse Spark 1.1](/compare/claude-sonnet-5-vs-muse-spark-1-1)
- [Muse Spark vs Muse Spark 1.1](/compare/muse-spark-vs-muse-spark-1-1)

## Explore More

- [Claude Sonnet 5 profile](/models/claude-sonnet-5)
- [Muse Spark profile](/models/muse-spark)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)