# Claude 3.7 Sonnet vs Llama 3.1 405B

> Side-by-side benchmark comparison for Claude 3.7 Sonnet and Llama 3.1 405B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-3-7-sonnet-vs-llama-3-1-405b
- Last updated: October 14, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude 3.7 Sonnet and Llama 3.1 405B 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 3.7 Sonnet has the larger published context window at 200K.

## Model Snapshot

| Property | Claude 3.7 Sonnet | Llama 3.1 405B |
|----------|----------|----------|
| Creator | Anthropic | Meta |
| Type | Proprietary | Open Weight |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 200K | 128K |
| Independent public score (not head-to-head) | null | 28.09 |
| Benchmarks Covered | 7 | 1 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Coding

- Winner: Insufficient shared evidence
- Claude 3.7 Sonnet public-lane score: Coming soon
- Llama 3.1 405B public-lane score: Coming soon

| Benchmark | Claude 3.7 Sonnet | Llama 3.1 405B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 62.3% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude 3.7 Sonnet public-lane score: Coming soon
- Llama 3.1 405B public-lane score: Coming soon

| Benchmark | Claude 3.7 Sonnet | Llama 3.1 405B | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 71.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude 3.7 Sonnet public-lane score: Coming soon
- Llama 3.1 405B public-lane score: Coming soon

| Benchmark | Claude 3.7 Sonnet | Llama 3.1 405B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 68% | Coming soon | Coming soon |
| MMMLU | 83.2% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude 3.7 Sonnet public-lane score: Coming soon
- Llama 3.1 405B public-lane score: 0 (#128/128)

| Benchmark | Claude 3.7 Sonnet | Llama 3.1 405B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 90.8% | 88.6% | Claude 3.7 Sonnet |

### Mathematics

- Winner: Insufficient shared evidence
- Claude 3.7 Sonnet public-lane score: Coming soon
- Llama 3.1 405B public-lane score: Coming soon

| Benchmark | Claude 3.7 Sonnet | Llama 3.1 405B | Winner |
|-----------|-----------|-----------|--------|
| MATH-500 | 82.2% | Coming soon | Coming soon |
| AIME 2024 | 23.3% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude 3.7 Sonnet and Llama 3.1 405B?

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 3.7 Sonnet vs Claude 3.7 Sonnet Thinking](/compare/claude-3-7-sonnet-vs-claude-3-7-sonnet-thinking)
- [Llama 3.1 405B vs Claude 3.7 Sonnet Thinking](/compare/claude-3-7-sonnet-thinking-vs-llama-3-1-405b)
- [Claude 3.7 Sonnet vs Claude Opus 5.5](/compare/claude-3-7-sonnet-vs-claude-opus-5-5)
- [Llama 3.1 405B vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-llama-3-1-405b)

## Explore More

- [Claude 3.7 Sonnet profile](/models/claude-3-7-sonnet)
- [Llama 3.1 405B profile](/models/llama-3-1-405b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)