# Llama 13b vs Llama 2-13B

> Llama 2-13B is the stronger model overall, scoring 29.1 to 23.9 on the Noometry Index.

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

## Summary

- They share 21 benchmarks with published results for both. Llama 13b scores higher in 1 category and Llama 2-13B in 5 categories; 6 gaps are clear of the uncertainty.
- The widest gap is in instruction following, where Llama 2-13B leads 53.5 to 36.9.

## Snapshot

| | Llama 13b | Llama 2-13B |
|---|---|---|
| Provider | Meta | Meta |
| Noometry Index | 23.9 | 29.1 |
| Rank | 344 | 304 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Llama 13b: 20.9 (#332)
- Llama 2-13B: 30.4 (#287)

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| LMArena Coding | 683 | 1062 |

## Reasoning

- Llama 13b: 13.4 (#327)
- Llama 2-13B: 12.3 (#333)

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| LMArena Hard Prompts | 728 | 1051 |
| BIG-Bench Hard | 37.9% | 58.2% |
| Epoch Capabilities Index | 100.09 | 105.8 |
| HellaSwag | 79.2% | 80.7% |
| LAMBADA | 75.2% | 76.5% |
| PIQA | 80.1% | 80.8% |
| WinoGrande | 73% | 72.8% |
| Chess Puzzles | — | 0% |
| DTBench | — | 42.2% |

## Math

- Llama 13b: 24.4 (#259)
- Llama 2-13B: 28.7 (#226)

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| LMArena Math | 838 | 1065 |
| GSM8K | 20.6% | 36.9% |

## Knowledge

- Llama 13b: —
- Llama 2-13B: 27.5 (#244)

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| ARC (AI2) Challenge | 52.7% | 60.3% |
| BoolQ | 78.7% | 82.4% |
| MMLU | 47.7% | 55.6% |
| OpenBookQA | 56.4% | 57% |
| TriviaQA | 77.9% | 79.6% |
| LMArena Expert | — | 1030 |

## Multimodal

- Llama 13b: —
- Llama 2-13B: —

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| ScienceQA | 43.3% | 55.8% |

## Multilingual

- Llama 13b: 16.8 (#292)
- Llama 2-13B: 26.7 (#274)

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| LMArena Non-English | 819 | 1024 |
| LMArena Chinese | — | 1001 |
| LMArena French | — | 1043 |
| LMArena German | — | 1009 |
| LMArena Japanese | — | 894 |
| LMArena Korean | — | 953 |
| LMArena Russian | — | 1055 |
| LMArena Spanish | — | 1086 |

## Instruction Following

- Llama 13b: 36.9 (#300)
- Llama 2-13B: 53.5 (#282)

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| LMArena Instruction Following | 781 | 1046 |

## Long Context

- Llama 13b: —
- Llama 2-13B: 32.3 (#264)

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| LMArena Longer Query | — | 1064 |

## Writing & Preference

- Llama 13b: 13.9 (#307)
- Llama 2-13B: 30.0 (#284)

| Benchmark | Llama 13b | Llama 2-13B |
|---|---|---|
| LMArena Text | 834 | 1085 |
| LMArena Creative Writing | 794 | 1047 |
| LMArena Multi-Turn | 753 | 1050 |

## FAQ

### Is Llama 13b better than Llama 2-13B?

Llama 2-13B is the stronger model overall, scoring 29.1 to 23.9 on the Noometry Index.

### Is Llama 13b or Llama 2-13B better for coding?

Llama 2-13B scores higher on coding benchmarks: 30.4 versus 20.9 in the Noometry coding category.

### How many benchmarks do Llama 13b and Llama 2-13B share?

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