# Claude Mythos 5 vs Muse Spark

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

- Canonical page: https://benchlm.ai/compare/claude-mythos-5-vs-muse-spark
- Last updated: September 4, 2026

- Shared sourced benchmarks: 7
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Claude Mythos 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 Mythos 5 leads overall 85 to 68.39.
- The clearest category separation is in multimodal & grounded, where the averages are 85.1 for Claude Mythos 5 and 77.5 for Muse Spark.
- The biggest single benchmark swing is CyberGym in Agentic, with scores of 83.8% and 43.5%.
- Claude Mythos 5 also has the larger context window at 1M+.

## Model Snapshot

| Property | Claude Mythos 5 | Muse Spark |
|----------|----------|----------|
| Creator | Anthropic | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M+ | 262K |
| Overall Score | null | 68.39 |
| Benchmarks Covered | 15 | 24 |
| Pricing (input/output) | $10.00 / $50.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Muse Spark public-lane score: 58.8 (Supported · #31/151)

| Benchmark | Claude Mythos 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 88% | 59% | Claude Mythos 5 |
| OSWorld-Verified | 85% | Coming soon | Coming soon |
| BrowseComp | 88% | Coming soon | Coming soon |
| CyberGym | 83.8% | 43.5% | Claude Mythos 5 |
| τ²-bench results | Coming soon | 91.5% | Coming soon |
| DeepSearchQA | Coming soon | 74.8% | Coming soon |
| Claw-Eval | Coming soon | 63.8% | Coming soon |

### Coding

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Muse Spark public-lane score: 59.2 (Supported · #28/183)

| Benchmark | Claude Mythos 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 95.5% | 77.4% | Claude Mythos 5 |
| SWE-bench Pro | 80.3% | 52.4% | Claude Mythos 5 |
| Terminal-Bench 2.0 | 88.0% | 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 Mythos 5 public-lane score: 85.1 (Unranked · 3 rankable rows)
- Muse Spark public-lane score: 77.5 (#14/48)

| Benchmark | Claude Mythos 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Multimodal | 54.9% | Coming soon | Coming soon |
| CharXiv | 93.5% | 86.4% | Claude Mythos 5 |
| CharXiv w/o tools | 88.9% | 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 Mythos 5 public-lane score: Coming soon
- Muse Spark public-lane score: 45.9 (Unranked · 3 rankable rows)

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

### Knowledge

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Muse Spark public-lane score: 65.7 (Supported · #23/181)

| Benchmark | Claude Mythos 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 94.1% | Coming soon | Coming soon |
| HLE | 64.5% | 50.4% | Claude Mythos 5 |
| HLE w/o tools | 59% | 42.8% | Claude Mythos 5 |
| 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 Mythos 5 public-lane score: Coming soon
- Muse Spark public-lane score: 92.9 (#8/120)

### Multilingual

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Muse Spark public-lane score: Coming soon

| Benchmark | Claude Mythos 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| SWE Multilingual | 92.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Muse Spark public-lane score: 55.3 (Unranked · 2 rankable rows)

| Benchmark | Claude Mythos 5 | Muse Spark | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | 97.6% | Coming soon | Coming soon |
| 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 Mythos 5 or Muse Spark?

Claude Mythos 5 is ahead overall on BenchLM right now.

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

The widest category gap is in multimodal & grounded, where the averages are 85.1 for Claude Mythos 5 and 77.5 for Muse Spark.

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

Claude Mythos 5 currently has 15 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 Mythos 5 vs Claude Mythos 5.1](/compare/claude-mythos-5-vs-claude-mythos-5-1)
- [Muse Spark vs Claude Mythos 5.1](/compare/claude-mythos-5-1-vs-muse-spark)
- [Claude Mythos 5 vs Claude Mythos Preview](/compare/claude-mythos-5-vs-claude-mythos-preview)
- [Muse Spark vs Claude Mythos Preview](/compare/claude-mythos-preview-vs-muse-spark)

## Explore More

- [Claude Mythos 5 profile](/models/claude-mythos-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)