# Claude Mythos 5.1 vs Muse Ember

> Side-by-side benchmark comparison for Claude Mythos 5.1 and Muse Ember across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-mythos-5-1-vs-muse-ember
- Last updated: November 9, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Mythos 5.1 and Muse Ember share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Claude Mythos 5.1 has the lower published output-token price.

## Model Snapshot

| Property | Claude Mythos 5.1 | Muse Ember |
|----------|----------|----------|
| Creator | Anthropic | Meta |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | null | 56.24 |
| Benchmarks Covered | 10 | 4 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.10 / $0.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Mythos 5.1 public-lane score: Coming soon
- Muse Ember public-lane score: Coming soon

| Benchmark | Claude Mythos 5.1 | Muse Ember | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 60.90% | 40.90% | Claude Mythos 5.1 |
| CVE Rediscovery | 78.3% | Coming soon | Coming soon |
| ExploitGym | 23.4% | Coming soon | Coming soon |
| Binary Exploitation Benchmark | 84 | Coming soon | Coming soon |
| OSWorld 2.1 | Coming soon | 69.5% | Coming soon |
| Agents' Last Exam (Linux) | Coming soon | 61.6% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Mythos 5.1 public-lane score: Coming soon
- Muse Ember public-lane score: Coming soon

| Benchmark | Claude Mythos 5.1 | Muse Ember | Winner |
|-----------|-----------|-----------|--------|
| PerceptionBench (tools) | Coming soon | 80.6% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Mythos 5.1 public-lane score: Coming soon
- Muse Ember public-lane score: Coming soon

| Benchmark | Claude Mythos 5.1 | Muse Ember | Winner |
|-----------|-----------|-----------|--------|
| Protein Domain ID | 63.5% | Coming soon | Coming soon |
| Protein Mutation Attribution | 48.0% | Coming soon | Coming soon |
| De novo protein-binder design | 79.1% | Coming soon | Coming soon |
| SingleCellBench | 61.8% | Coming soon | Coming soon |
| Protocols (troubleshooting) | 70.2% | Coming soon | Coming soon |
| Medicinal chemistry | 57.7% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Mythos 5.1 and Muse Ember?

Not yet. The models share only 1 sourced benchmark row, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Claude Mythos 5.1 vs Claude Mythos 5](/compare/claude-mythos-5-vs-claude-mythos-5-1)
- [Muse Ember vs Claude Mythos 5](/compare/claude-mythos-5-vs-muse-ember)
- [Claude Mythos 5.1 vs Claude Mythos 5.2](/compare/claude-mythos-5-1-vs-claude-mythos-5-2)
- [Muse Ember vs Claude Mythos 5.2](/compare/claude-mythos-5-2-vs-muse-ember)

## Explore More

- [Claude Mythos 5.1 profile](/models/claude-mythos-5-1)
- [Muse Ember profile](/models/muse-ember)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)