# Claude Mythos 5.2 vs GPT-6 Luna

> Side-by-side benchmark comparison for Claude Mythos 5.2 and GPT-6 Luna across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-mythos-5-2-vs-gpt-6-luna
- Last updated: November 10, 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 5.2 and GPT-6 Luna 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.
- GPT-6 Luna has the lower published output-token price.
- GPT-6 Luna has the larger published context window at 1.05M.

## Model Snapshot

| Property | Claude Mythos 5.2 | GPT-6 Luna |
|----------|----------|----------|
| Creator | Anthropic | OpenAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1.05M |
| Independent public score (not head-to-head) | null | 62.37 |
| Benchmarks Covered | 14 | 26 |
| Pricing (input/output) | $8.00 / $40.00 | $0.10 / $0.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 53.8 (Estimated · #47/132)

| Benchmark | Claude Mythos 5.2 | GPT-6 Luna | 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% | 11.6% | Claude Mythos 5.2 |
| Binary Exploitation Benchmark | 148 | Coming soon | Coming soon |
| Terminal-Bench 4.1 | Coming soon | 15.20% | Coming soon |
| Agents' Last Exam (Linux) | Coming soon | 57.1% | Coming soon |
| Hermes Index | Coming soon | 33.9% | Coming soon |
| Hermes Bench | Coming soon | 70.5% | Coming soon |
| MazeBench | Coming soon | 0% | Coming soon |
| OSWorld 2.1 Offline | Coming soon | 48.9% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 51.6 (Supported · #43/158)

| Benchmark | Claude Mythos 5.2 | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | Coming soon | 66.6% | Coming soon |
| Bug Hunt Bench | Coming soon | 18.3 fixes | Coming soon |
| FrontierCode 2.0 | Coming soon | 21.9% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 54.4 (Supported · #47/158)

| Benchmark | Claude Mythos 5.2 | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| BioBasicsBench | Coming soon | 37.6% | Coming soon |
| ARC-AGI-1 | Coming soon | 86.67% | Coming soon |
| ARC-AGI-2 | Coming soon | 59.3% | Coming soon |
| ARC-AGI-3 | Coming soon | 0.1% | Coming soon |
| ARC-AGI-3 Provider Adapter | Coming soon | 0.59% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 63.9 (Supported · #29/67)

| Benchmark | Claude Mythos 5.2 | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| Biomedical image analysis | 80.7% | Coming soon | Coming soon |
| PerceptionBench (tools) | Coming soon | 62.8% | Coming soon |
| ExtractBench Pro | Coming soon | 0% | Coming soon |
| ExtractBench (LlamaIndex) | Coming soon | 91.01% | Coming soon |
| ParseBench | Coming soon | 64.13% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 62.3 (Supported · #42/179)

| Benchmark | Claude Mythos 5.2 | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| De novo protein-binder design | 85.1% | Coming soon | Coming soon |
| Protein Design | 64.6% | Coming soon | Coming soon |
| SingleCellBench | 65.6% | Coming soon | Coming soon |
| Protocols (troubleshooting) | 77.1% | Coming soon | Coming soon |
| 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 |
| HealthBench (raw) | Coming soon | 50.0% | Coming soon |
| HealthBench (length-adjusted) | Coming soon | 54.5% | Coming soon |
| HealthBench Professional | Coming soon | 60.8% | Coming soon |
| HealthBench Professional (raw) | Coming soon | 61.2% | Coming soon |
| HealthBench Hard | Coming soon | 31.4% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Claude Mythos 5.2 public-lane score: Coming soon
- GPT-6 Luna public-lane score: 78.7 (Unranked · 2 rankable rows)

| Benchmark | Claude Mythos 5.2 | GPT-6 Luna | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 78.947% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 56.098% | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Mythos 5.2 and GPT-6 Luna?

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 5.2 vs Claude Mythos 5](/compare/claude-mythos-5-vs-claude-mythos-5-2)
- [GPT-6 Luna vs Claude Mythos 5](/compare/claude-mythos-5-vs-gpt-6-luna)
- [Claude Mythos 5.2 vs Claude Mythos 5.1](/compare/claude-mythos-5-1-vs-claude-mythos-5-2)
- [GPT-6 Luna vs Claude Mythos 5.1](/compare/claude-mythos-5-1-vs-gpt-6-luna)

## Explore More

- [Claude Mythos 5.2 profile](/models/claude-mythos-5-2)
- [GPT-6 Luna profile](/models/gpt-6-luna)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)