# Claude Mythos 5 vs Qwen3.8-Omni-Flash

> Side-by-side benchmark comparison for Claude Mythos 5 and Qwen3.8-Omni-Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-mythos-5-vs-qwen3-8-omni-flash
- Last updated: September 18, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Claude Mythos 5 if you want the stronger benchmark profile. Qwen3.8-Omni-Flash 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 63.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 64.5% and 36.5%.
- Qwen3.8-Omni-Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Claude Mythos 5 | Qwen3.8-Omni-Flash |
|----------|----------|----------|
| Creator | Anthropic | Alibaba |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M+ | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 15 | 19 |
| Pricing (input/output) | $10.00 / $50.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | Claude Mythos 5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 88% | Coming soon | Coming soon |
| OSWorld-Verified | 85% | Coming soon | Coming soon |
| BrowseComp | 88% | Coming soon | Coming soon |
| CyberGym | 83.8% | Coming soon | Coming soon |
| CoWorkBench | Coming soon | 75.3% | Coming soon |
| AndroidWorld | Coming soon | 87.1% | Coming soon |

### Coding

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: 53.5 (Estimated · #45/154)

| Benchmark | Claude Mythos 5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 95.5% | Coming soon | Coming soon |
| SWE-bench Pro | 80.3% | 63.3% | Claude Mythos 5 |
| Terminal-Bench 2.0 | 88.0% | Coming soon | Coming soon |
| SWE Multilingual | Coming soon | 80.5% | Coming soon |
| NL2Repo | Coming soon | 48.9% | Coming soon |
| DeepSWE | Coming soon | 57.8% | Coming soon |
| LiveCodeBench v6 | Coming soon | 92.6% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Claude Mythos 5 public-lane score: 85.1 (Unranked · 3 rankable rows)
- Qwen3.8-Omni-Flash public-lane score: 85.1 (Unranked · 7 rankable rows)

| Benchmark | Claude Mythos 5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Multimodal | 54.9% | Coming soon | Coming soon |
| CharXiv | 93.5% | 91.4% | Claude Mythos 5 |
| CharXiv w/o tools | 88.9% | 83.5% | Claude Mythos 5 |
| Vision2Web | Coming soon | 62.9% | Coming soon |
| ERQA | Coming soon | 71.0% | Coming soon |
| LVBench | Coming soon | 76.9% | Coming soon |
| RealWorldQA | Coming soon | 87.7% | Coming soon |
| MathVision | Coming soon | 91.8% | Coming soon |
| MathVision w/ Python | Coming soon | 96.2% | Coming soon |

### Knowledge

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: 54.9 (Estimated · #54/184)

| Benchmark | Claude Mythos 5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 94.1% | 91% | Claude Mythos 5 |
| HLE | 64.5% | 36.5% | Claude Mythos 5 |
| HLE w/o tools | 59% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 91.0% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: 87.7 (#29/124)

| Benchmark | Claude Mythos 5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 81.5% | Coming soon |

### Multilingual

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | Claude Mythos 5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE Multilingual | 92.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Coming soon
- Claude Mythos 5 public-lane score: Coming soon
- Qwen3.8-Omni-Flash public-lane score: Coming soon

| Benchmark | Claude Mythos 5 | Qwen3.8-Omni-Flash | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | 97.6% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Claude Mythos 5 or Qwen3.8-Omni-Flash?

Claude Mythos 5 is ahead overall on BenchLM right now.

### 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 Qwen3.8-Omni-Flash cover on BenchLM?

Qwen3.8-Omni-Flash currently has 19 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Mythos 5 vs Claude Mythos 5.1](/compare/claude-mythos-5-vs-claude-mythos-5-1)
- [Qwen3.8-Omni-Flash vs Claude Mythos 5.1](/compare/claude-mythos-5-1-vs-qwen3-8-omni-flash)
- [Claude Mythos 5 vs Claude Mythos Preview](/compare/claude-mythos-5-vs-claude-mythos-preview)
- [Qwen3.8-Omni-Flash vs Claude Mythos Preview](/compare/claude-mythos-preview-vs-qwen3-8-omni-flash)

## Explore More

- [Claude Mythos 5 profile](/models/claude-mythos-5)
- [Qwen3.8-Omni-Flash profile](/models/qwen3-8-omni-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)