# Claude Mythos 5 vs DeepSeek V4 Pro 0813

> Side-by-side benchmark comparison for Claude Mythos 5 and DeepSeek V4 Pro 0813 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-mythos-5-vs-deepseek-v4-pro-0813
- Last updated: September 27, 2026

- Shared sourced benchmarks: 8
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Claude Mythos 5 if you want the stronger benchmark profile. DeepSeek V4 Pro 0813 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 82 to 63.48.
- The biggest single benchmark swing is SWE-bench Pro in Coding, with scores of 80.3% and 55.4%.
- DeepSeek V4 Pro 0813 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Claude Mythos 5 | DeepSeek V4 Pro 0813 |
|----------|----------|----------|
| Creator | Anthropic | DeepSeek |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M+ | 1M |
| Overall Score | null | 63.48 |
| Benchmarks Covered | 15 | 42 |
| Pricing (input/output) | $10.00 / $50.00 | $1.32 / $3.96 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Claude Mythos 5 public-lane score: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: 55 (Supported · #29/105)

| Benchmark | Claude Mythos 5 | DeepSeek V4 Pro 0813 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 88.0% | 87.9% | Claude Mythos 5 |
| OSWorld-Verified | 85% | Coming soon | Coming soon |
| BrowseComp | 88% | 83.4% | Claude Mythos 5 |
| CyberGym | 83.8% | 83.3% | Claude Mythos 5 |
| Terminal-Bench 2.0 | Coming soon | 67.9% | Coming soon |
| HLE w/ tools | Coming soon | 60.0% | Coming soon |
| MCP Atlas | Coming soon | 73.6% | Coming soon |
| Toolathlon | Coming soon | 51.8% | Coming soon |
| Toolathlon-Verified | Coming soon | 74.1% | Coming soon |
| Agents' Last Exam | Coming soon | 25.7% | Coming soon |
| AutomationBench | Coming soon | 31.8% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 54.7% | Coming soon |

### Coding

- Winner: Not comparable
- Claude Mythos 5 public-lane score: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: 50.3 (Supported · #39/135)

| Benchmark | Claude Mythos 5 | DeepSeek V4 Pro 0813 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 95.5% | 80.6% | Claude Mythos 5 |
| SWE-bench Pro | 80.3% | 55.4% | Claude Mythos 5 |
| Terminal-Bench 2.1 | 88.0% | 87.9% | Claude Mythos 5 |
| LiveCodeBench Pass@1-COT | Coming soon | 93.5% | Coming soon |
| Codeforces | Coming soon | 3206.0 | Coming soon |
| SWE Multilingual | Coming soon | 76.2% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 67.9% | Coming soon |
| Vibe Code Bench | Coming soon | 49.93% | Coming soon |
| NL2Repo | Coming soon | 61.5% | Coming soon |
| DeepSWE | Coming soon | 62.7% | Coming soon |
| DSBench-FullStack | Coming soon | 71.1% | Coming soon |
| DSBench-Hard | Coming soon | 67.2% | Coming soon |
| OpenHarmony Bench | Coming soon | 59.0% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 87.5% | Coming soon |
| SWE-bench (Vals) | Coming soon | 96.4% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Mythos 5 public-lane score: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: 56.9 (Unranked · 4 rankable rows)

| Benchmark | Claude Mythos 5 | DeepSeek V4 Pro 0813 | Winner |
|-----------|-----------|-----------|--------|
| MRCR 1M | Coming soon | 83.5% | Coming soon |
| CorpusQA 1M | Coming soon | 62.0% | Coming soon |
| ARC-AGI-1 | Coming soon | 90.00% | Coming soon |
| ARC-AGI-2 | Coming soon | 61.3% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Mythos 5 public-lane score: 85.1 (Unranked · 3 rankable rows)
- DeepSeek V4 Pro 0813 public-lane score: Coming soon

| Benchmark | Claude Mythos 5 | DeepSeek V4 Pro 0813 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Multimodal | 54.9% | Coming soon | Coming soon |
| CharXiv | 93.5% | Coming soon | Coming soon |
| CharXiv w/o tools | 88.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Claude Mythos 5 public-lane score: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: 63.4 (Estimated · #29/158)

| Benchmark | Claude Mythos 5 | DeepSeek V4 Pro 0813 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 94.1% | 90.1% | Claude Mythos 5 |
| HLE | 64.5% | 42.7% | Claude Mythos 5 |
| HLE w/o tools | 59% | Coming soon | Coming soon |
| MMLU-Pro | Coming soon | 87.5% | Coming soon |
| SimpleQA | Coming soon | 57.9% | Coming soon |
| Chinese-SimpleQA | Coming soon | 84.4% | Coming soon |
| GPQA-D | Coming soon | 90.1% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 92.4% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 87.0% | Coming soon |

### Multilingual

- Winner: Not comparable
- Claude Mythos 5 public-lane score: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: Coming soon

| Benchmark | Claude Mythos 5 | DeepSeek V4 Pro 0813 | Winner |
|-----------|-----------|-----------|--------|
| SWE Multilingual | 92.2% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Claude Mythos 5 public-lane score: Coming soon
- DeepSeek V4 Pro 0813 public-lane score: 80.2 (Unranked · 4 rankable rows)

| Benchmark | Claude Mythos 5 | DeepSeek V4 Pro 0813 | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | 97.6% | Coming soon | Coming soon |
| HMMT Feb 2026 | Coming soon | 95.2% | Coming soon |
| IMOAnswerBench | Coming soon | 89.8% | Coming soon |
| Apex | Coming soon | 38.3% | Coming soon |
| Apex Shortlist | Coming soon | 90.2% | Coming soon |

## FAQ

### Which is better overall, Claude Mythos 5 or DeepSeek V4 Pro 0813?

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 DeepSeek V4 Pro 0813 cover on BenchLM?

DeepSeek V4 Pro 0813 currently has 42 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Mythos 5 vs Claude Mythos 5.1](/compare/claude-mythos-5-vs-claude-mythos-5-1)
- [DeepSeek V4 Pro 0813 vs Claude Mythos 5.1](/compare/claude-mythos-5-1-vs-deepseek-v4-pro-0813)
- [Claude Mythos 5 vs Claude Mythos Preview](/compare/claude-mythos-5-vs-claude-mythos-preview)
- [DeepSeek V4 Pro 0813 vs Claude Mythos Preview](/compare/claude-mythos-preview-vs-deepseek-v4-pro-0813)

## Explore More

- [Claude Mythos 5 profile](/models/claude-mythos-5)
- [DeepSeek V4 Pro 0813 profile](/models/deepseek-v4-pro-0813)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)