# Claude Mythos 5.2 vs Claude Opus 5

> Side-by-side benchmark comparison for Claude Mythos 5.2 and Claude Opus 5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-mythos-5-2-vs-claude-opus-5
- Last updated: November 9, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Mythos 5.2 and Claude Opus 5 share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Claude Opus 5 has the lower published output-token price.
- Claude Mythos 5.2 has the larger published context window at 1M.

## Model Snapshot

| Property | Claude Mythos 5.2 | Claude Opus 5 |
|----------|----------|----------|
| Creator | Anthropic | Anthropic |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | null |
| Independent public score (not head-to-head) | null | 79.11 |
| Benchmarks Covered | 14 | 84 |
| Pricing (input/output) | $8.00 / $40.00 | $5.00 / $25.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- Claude Opus 5 public-lane score: 77 (Supported · #5/132)

| Benchmark | Claude Mythos 5.2 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 70.50% | Coming soon | Coming soon |
| Terminal-Bench-Science 0.1 | 75.3% | Coming soon | Coming soon |
| CVE Rediscovery | 89.6% | Coming soon | Coming soon |
| ExploitGym | 38.1% | Coming soon | Coming soon |
| Binary Exploitation Benchmark | 148 | Coming soon | Coming soon |
| Terminal-Bench 4.1 | Coming soon | 53.30% | Coming soon |
| Terminal-Bench 3.0 | Coming soon | 42.7% | Coming soon |
| BrowseComp | Coming soon | 90.8% | Coming soon |
| HLE w/ tools | Coming soon | 64.7% | Coming soon |
| DeepSearchQA | Coming soon | 95.0% | Coming soon |
| DRACO | Coming soon | 88.6% | Coming soon |
| BrowseComp (10-agent, prerelease) | Coming soon | 93.6% | Coming soon |
| OSWorld 2.0 | Coming soon | 70.6% | Coming soon |
| MCP Atlas | Coming soon | 85.8% | Coming soon |
| MCP-Atlas claim coverage | Coming soon | 89.1% | Coming soon |
| LAB all-pass (Anthropic harness) | Coming soon | 23.58% | Coming soon |
| LAB criterion-pass (Anthropic harness) | Coming soon | 93.74% | Coming soon |
| LAB all-pass (Harvey held-out) | Coming soon | 11.7% | Coming soon |
| LAB criterion-pass (Harvey held-out) | Coming soon | 94.1% | Coming soon |
| Toolathlon-Verified | Coming soon | 80.6% | Coming soon |
| Toolathlon Verified Pass@3 | Coming soon | 87.0% | Coming soon |
| Toolathlon Verified Pass³ | Coming soon | 73.1% | Coming soon |
| Toolathlon Verified avg. turns | Coming soon | 23.5 turns | Coming soon |
| AutomationBench | Coming soon | 26.0% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 84.6% | Coming soon |
| ApprenticeBench | Coming soon | 36% | Coming soon |
| MazeBench | Coming soon | 12% | Coming soon |
| OSWorld 2.1 | Coming soon | 74.0% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- Claude Opus 5 public-lane score: 70.4 (Supported · #10/158)

| Benchmark | Claude Mythos 5.2 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| ScarfBench | Coming soon | 69.8% | Coming soon |
| Bug Hunt Bench | Coming soon | 27.0 fixes | Coming soon |
| SWE-bench Verified | Coming soon | 96% | Coming soon |
| SWE-bench Pro | Coming soon | 79.2% | Coming soon |
| SWE Multilingual | Coming soon | 89.5% | Coming soon |
| SWE Multimodal | Coming soon | 59.4% | Coming soon |
| DeepSWE | Coming soon | 68.8% | Coming soon |
| FrontierCode 1.1 Main | Coming soon | 53.4% | Coming soon |
| FrontierCode 1.1 Extended | Coming soon | 63.6% | Coming soon |
| FrontierSWE v2 | Coming soon | 52.0% | Coming soon |
| ProgramBench (episode 1) | Coming soon | 83.0% | Coming soon |
| ProgramBench | Coming soon | 93.0% | Coming soon |
| CursorBench 3.2 | Coming soon | 70.0% | Coming soon |
| VulcanBench v3 | Coming soon | 87.0% | Coming soon |
| VulcanBench CII v1 | Coming soon | 96.4% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 89.0% | Coming soon |
| SWE-bench (Vals) | Coming soon | 97.0% | Coming soon |
| CursorBench 4.0 | Coming soon | 46.6% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 35.0% | Coming soon |
| FrontierCode 2.0 | Coming soon | 26.7% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- Claude Opus 5 public-lane score: 74.8 (Supported · #11/157)

| Benchmark | Claude Mythos 5.2 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | Coming soon | 97.50% | Coming soon |
| ARC-AGI-2 | Coming soon | 90.4% | Coming soon |
| ARC-AGI-3 | Coming soon | 30.2% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- Claude Opus 5 public-lane score: 77.8 (Estimated · #6/67)

| Benchmark | Claude Mythos 5.2 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| Biomedical image analysis | 80.7% | Coming soon | Coming soon |
| Chartography (no tools) | Coming soon | 29.6% | Coming soon |
| Chartography (tools) | Coming soon | 83.0% | Coming soon |
| BenchCAD Vision2Code (no tools) | Coming soon | 0.366 | Coming soon |
| BenchCAD Vision2Code (tools) | Coming soon | 0.821 | Coming soon |
| GDP.pdf (no tools) | Coming soon | 83.4% | Coming soon |
| GDP.pdf (tools) | Coming soon | 85.5% | Coming soon |
| OfficeQA | Coming soon | 78.1% | Coming soon |
| OfficeQA Pro | Coming soon | 66.9% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- Claude Opus 5 public-lane score: 80.3 (Supported · #6/179)

| Benchmark | Claude Mythos 5.2 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| De novo protein-binder design | 85.1% | Coming soon | Coming soon |
| Protein Design | 64.6% | 42.5% | Claude Mythos 5.2 |
| SingleCellBench | 65.6% | 60.6% | Claude Mythos 5.2 |
| Protocols (troubleshooting) | 77.1% | 61.1% | Claude Mythos 5.2 |
| Protein Domain ID | 91.8% | Coming soon | Coming soon |
| Protein Mutation Attribution | 51.5% | Coming soon | Coming soon |
| Morphology-to-molecule matching | 35.2% | Coming soon | Coming soon |
| Medicinal chemistry | 69.0% | Coming soon | Coming soon |
| HLE | Coming soon | 64.7% | Coming soon |
| HLE w/o tools | Coming soon | 56.3% | Coming soon |
| HLE-Verified | Coming soon | 54.4% | Coming soon |
| LABBench2 | Coming soon | 84.2% | Coming soon |
| HealthBench (raw) | Coming soon | 67.1% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 57.8% | Coming soon |
| HealthBench Professional | Coming soon | 59.8% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 73.4% | Coming soon |
| BioMysteryBench (human-solvable) | Coming soon | 90.1% | Coming soon |
| BioMysteryBench (human-difficult) | Coming soon | 49.4% | Coming soon |
| SpatialBench Verified | Coming soon | 72.5% | Coming soon |
| ProteinGym Hard | Coming soon | 47.7% | Coming soon |
| Organic chemistry V2 | Coming soon | 61.6% | Coming soon |
| Protocols (understanding) | Coming soon | 78.4% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 93.4% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 91.6% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- Claude Opus 5 public-lane score: Coming soon

| Benchmark | Claude Mythos 5.2 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| GMMLU | Coming soon | 92.5% | Coming soon |
| MILU | Coming soon | 92.1% | Coming soon |
| INCLUDE | Coming soon | 89.8% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- Claude Opus 5 public-lane score: Coming soon

| Benchmark | Claude Mythos 5.2 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| Gray Swan IPI (15 attempts) | Coming soon | 4.6% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- Claude Opus 5 public-lane score: 88.1 (Unranked · 7 rankable rows)

| Benchmark | Claude Mythos 5.2 | Claude Opus 5 | Winner |
|-----------|-----------|-----------|--------|
| IMO 2026 | Coming soon | 42/42 | Coming soon |
| RiemannBench (no tools) | Coming soon | 60.0% | Coming soon |
| RiemannBench (tools) | Coming soon | 79.0% | Coming soon |
| ArXivMath Jun. 2026 (no tools) | Coming soon | 90.8% | Coming soon |
| ArXivMath Jun. 2026 (tools) | Coming soon | 91.3% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 85.614% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 73.171% | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Mythos 5.2 and Claude Opus 5?

Not yet. The models share only 3 sourced benchmark rows, 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 5.2 vs Claude Mythos 5](/compare/claude-mythos-5-vs-claude-mythos-5-2)
- [Claude Opus 5 vs Claude Mythos 5](/compare/claude-mythos-5-vs-claude-opus-5)
- [Claude Mythos 5.2 vs Claude Mythos 5.1](/compare/claude-mythos-5-1-vs-claude-mythos-5-2)
- [Claude Opus 5 vs Claude Mythos 5.1](/compare/claude-mythos-5-1-vs-claude-opus-5)

## Explore More

- [Claude Mythos 5.2 profile](/models/claude-mythos-5-2)
- [Claude Opus 5 profile](/models/claude-opus-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)