# Claude 3 Sonnet vs Llama 2-13B

> Claude 3 Sonnet and Llama 2-13B score almost the same on the Noometry Index (29.0 vs 29.6), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/claude-3-sonnet-vs-llama-2-13b
- Last updated: 2026-10-12
- Shared benchmarks: 21

## Summary

- They share 21 benchmarks with published results for both. Claude 3 Sonnet scores higher in 5 categories and Llama 2-13B in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Llama 2-13B leads 31.1 to 10.7.
- The biggest single-benchmark swing is DTBench: 53.6% for Claude 3 Sonnet and 42.2% for Llama 2-13B.
- Llama 2-13B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| Provider | Anthropic | Meta |
| Noometry Index | 29.0 | 29.6 |
| Rank | 319 | 309 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Proprietary | Open |

## Coding

- Claude 3 Sonnet: 29.6 (#302)
- Llama 2-13B: 30.9 (#291)

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Coding | 1223 | 1062 |
| WeirdML | 10.2% | — |
| BigCodeBench Instruct | 42.7% | — |
| BigCodeBench Complete | 53.8% | — |
| HumanEval+ | 64% | — |
| MBPP+ | 69.3% | — |

## Reasoning

- Claude 3 Sonnet: 20.5 (#237)
- Llama 2-13B: 12.8 (#337)

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Hard Prompts | 1197 | 1051 |
| DTBench | 53.6% | 42.2% |
| Epoch Capabilities Index | 120.7 | 106.17 |
| WinoGrande | 75.1% | 72.8% |
| Chess Puzzles | — | 0% |
| BIG-Bench Hard | — | 58.2% |
| HellaSwag | — | 80.7% |
| LAMBADA | — | 76.5% |
| PIQA | — | 80.8% |

## Math

- Claude 3 Sonnet: 10.7 (#310)
- Llama 2-13B: 31.1 (#229)

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Math | 1213 | 1065 |
| OTIS Mock AIME 2024-2025 | 2.5% | — |
| MATH Level 5 | 18.2% | — |
| GSM8K | — | 36.9% |

## Knowledge

- Claude 3 Sonnet: 21.1 (#276)
- Llama 2-13B: 28.1 (#249)

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Expert | 1173 | 1030 |
| MMLU | 75.9% | 55.6% |
| GPQA Diamond | 40.6% | — |
| ARC (AI2) Challenge | — | 60.3% |
| BoolQ | — | 82.4% |
| OpenBookQA | — | 57% |
| TriviaQA | — | 79.6% |

## Multimodal

- Claude 3 Sonnet: 25.2 (#125)
- Llama 2-13B: —

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Vision | 984 | — |
| ScienceQA | — | 55.8% |

## Multilingual

- Claude 3 Sonnet: 37.8 (#234)
- Llama 2-13B: 26.5 (#279)

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Non-English | 1205 | 1024 |
| LMArena Chinese | 1189 | 1001 |
| LMArena French | 1229 | 1044 |
| LMArena German | 1204 | 1009 |
| LMArena Japanese | 1131 | 894 |
| LMArena Korean | 1128 | 953 |
| LMArena Russian | 1227 | 1055 |
| LMArena Spanish | 1204 | 1087 |

## Instruction Following

- Claude 3 Sonnet: 62.8 (#235)
- Llama 2-13B: 53.3 (#287)

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Instruction Following | 1199 | 1045 |

## Long Context

- Claude 3 Sonnet: 36.7 (#228)
- Llama 2-13B: 32.3 (#269)

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Longer Query | 1211 | 1064 |

## Writing & Preference

- Claude 3 Sonnet: 42.1 (#238)
- Llama 2-13B: 29.8 (#289)

| Benchmark | Claude 3 Sonnet | Llama 2-13B |
|---|---|---|
| LMArena Text | 1218 | 1084 |
| LMArena Creative Writing | 1186 | 1047 |
| LMArena Multi-Turn | 1227 | 1050 |

## FAQ

### Is Claude 3 Sonnet better than Llama 2-13B?

Claude 3 Sonnet and Llama 2-13B score almost the same on the Noometry Index (29.0 vs 29.6), so choose on price, context window or the category you care about most.

### Is Claude 3 Sonnet or Llama 2-13B better for coding?

Llama 2-13B scores higher on coding benchmarks: 30.9 versus 29.6 in the Noometry coding category.

### How many benchmarks do Claude 3 Sonnet and Llama 2-13B share?

21 benchmarks have published results for both models. Claude 3 Sonnet has 30 scored results on Noometry and Llama 2-13B has 32.