# Claude 2 vs Llama 3.1-8B

> Claude 2 is the stronger model overall, scoring 25.0 to 23.0 on the Noometry Index.

- Canonical page: https://noometry.com/compare/claude-2-vs-llama-3-1-8b
- Last updated: 2026-10-10
- Shared benchmarks: 7

## Summary

- They share 7 benchmarks with published results for both. Claude 2 scores higher in 2 categories and Llama 3.1-8B in 1 category; 2 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Claude 2 leads 16.9 to 8.0.
- The biggest single-benchmark swing is MATH Level 5: 11.7% for Claude 2 and 22.9% for Llama 3.1-8B.
- Llama 3.1-8B has downloadable open weights; the other is API-only.

## Snapshot

| | Claude 2 | Llama 3.1-8B |
|---|---|---|
| Provider | Anthropic | Meta |
| Noometry Index | 25.0 | 23.0 |
| Rank | 346 | 352 |
| Context | — | 128K |
| Input $/M | — | $0.05 |
| Output $/M | — | $0.08 |
| Weights | Proprietary | Open |

## Coding

- Claude 2: —
- Llama 3.1-8B: 20.2 (#340)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| HumanEval+ | 61.6% | 62.8% |
| SciCode | — | 13.2% |
| WeirdML | — | 1.7% |
| BigCodeBench Instruct | — | 32.8% |
| LMArena Coding | — | 1195 |
| BigCodeBench Complete | — | 40.5% |
| MBPP+ | — | 55.6% |

## Agentic & Tool Use

- Claude 2: —
- Llama 3.1-8B: 22.5 (#131)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 25.8% |
| BALROG | — | 15.1% |

## Reasoning

- Claude 2: 21.7 (#216)
- Llama 3.1-8B: 14.9 (#321)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| DTBench | 51.9% | 50.9% |
| Epoch Capabilities Index | 120.13 | 116.57 |
| CritPt | — | 0% |
| Chess Puzzles | — | 0% |
| LMArena Hard Prompts | — | 1175 |
| LMCA | — | 5.4% |
| PIQA | — | 81.2% |

## Math

- Claude 2: 9.3 (#320)
- Llama 3.1-8B: 10.2 (#317)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 2.5% | 1.7% |
| MATH Level 5 | 11.7% | 22.9% |
| Omni-MATH | — | 13.7% |
| LMArena Math | — | 1179 |
| GSM8K | — | 82.4% |

## Knowledge

- Claude 2: 16.9 (#287)
- Llama 3.1-8B: 8.0 (#307)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| GPQA Diamond | 34.7% | 27% |
| MMLU | 78.5% | 56.1% |
| MMLU-Pro | — | 40.6% |
| GPQA (HELM) | — | 24.7% |
| LMArena Expert | — | 1144 |
| BoolQ | — | 82.8% |
| TriviaQA | 87.5% | — |

## Multilingual

- Claude 2: —
- Llama 3.1-8B: 34.0 (#249)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| LMArena Non-English | — | 1148 |
| LMArena Chinese | — | 1151 |
| LMArena French | — | 1177 |
| LMArena German | — | 1144 |
| LMArena Japanese | — | 1061 |
| LMArena Korean | — | 1053 |
| LMArena Russian | — | 1158 |
| LMArena Spanish | — | 1169 |

## Instruction Following

- Claude 2: —
- Llama 3.1-8B: 58.9 (#258)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| IFEval | — | 74.3% |
| LMArena Instruction Following | — | 1159 |

## Long Context

- Claude 2: —
- Llama 3.1-8B: 35.8 (#238)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| LMArena Longer Query | — | 1182 |

## Writing & Preference

- Claude 2: —
- Llama 3.1-8B: 29.7 (#290)

| Benchmark | Claude 2 | Llama 3.1-8B |
|---|---|---|
| LMArena Text | — | 1187 |
| LMArena Creative Writing | — | 1154 |
| EQ-Bench Creative Writing | — | 713 |
| WildBench | — | 68.7% |
| LMArena Multi-Turn | — | 1172 |

## FAQ

### Is Claude 2 better than Llama 3.1-8B?

Claude 2 is the stronger model overall, scoring 25.0 to 23.0 on the Noometry Index.

### How many benchmarks do Claude 2 and Llama 3.1-8B share?

7 benchmarks have published results for both models. Claude 2 has 8 scored results on Noometry and Llama 3.1-8B has 43.