# Claude Mythos 5.1 vs Grok 4.7

> Side-by-side benchmark comparison for Claude Mythos 5.1 and Grok 4.7 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-mythos-5-1-vs-grok-4-7
- Last updated: September 21, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Mythos 5.1 and Grok 4.7 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.
- Claude Mythos 5.1 has the larger published context window at 1M.

## Model Snapshot

| Property | Claude Mythos 5.1 | Grok 4.7 |
|----------|----------|----------|
| Creator | Anthropic | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 500K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 1 | 6 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Mythos 5.1 public-lane score: Coming soon
- Grok 4.7 public-lane score: Coming soon

| Benchmark | Claude Mythos 5.1 | Grok 4.7 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 60.90% | 38.00% | Claude Mythos 5.1 |
| Terminal-Bench 2.1 (Vals) | Coming soon | 76.0% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Mythos 5.1 public-lane score: Coming soon
- Grok 4.7 public-lane score: Coming soon

| Benchmark | Claude Mythos 5.1 | Grok 4.7 | Winner |
|-----------|-----------|-----------|--------|
| cursorBench40 | Coming soon | 46.3% | Coming soon |
| DeepSWE | Coming soon | 71.0% | Coming soon |
| EEBench | Coming soon | 64.0% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Mythos 5.1 public-lane score: Coming soon
- Grok 4.7 public-lane score: 73.7 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- Claude Mythos 5.1 public-lane score: Coming soon
- Grok 4.7 public-lane score: Coming soon

| Benchmark | Claude Mythos 5.1 | Grok 4.7 | Winner |
|-----------|-----------|-----------|--------|
| HealthBench Professional | Coming soon | 56.7% | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Mythos 5.1 and Grok 4.7?

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)
- [Grok 4.7 vs Claude Mythos 5](/compare/claude-mythos-5-vs-grok-4-7)
- [Claude Mythos 5.1 vs Claude Mythos Preview](/compare/claude-mythos-5-1-vs-claude-mythos-preview)
- [Grok 4.7 vs Claude Mythos Preview](/compare/claude-mythos-preview-vs-grok-4-7)

## Explore More

- [Claude Mythos 5.1 profile](/models/claude-mythos-5-1)
- [Grok 4.7 profile](/models/grok-4-7)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)