# Codellama 34b Instruct vs Llama 3.1-405B

> Codellama 34b Instruct and Llama 3.1-405B score almost the same on the Noometry Index (30.8 vs 30.7), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/codellama-34b-instruct-vs-llama-3-1-405b
- Last updated: 2026-10-11
- Shared benchmarks: 10

## Summary

- They share 10 benchmarks with published results for both. Codellama 34b Instruct scores higher in 2 categories and Llama 3.1-405B in 5 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in multilingual, where Llama 3.1-405B leads 40.7 to 25.8.

## Snapshot

| | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| Provider | Meta | Meta |
| Noometry Index | 30.8 | 30.7 |
| Rank | 287 | 288 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Open |

## Coding

- Codellama 34b Instruct: 28.5 (#314)
- Llama 3.1-405B: 33.1 (#262)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| LMArena Coding | 1046 | 1291 |
| WeirdML | — | 21.4% |
| BigCodeBench Instruct | 29% | — |
| BigCodeBench Complete | 37.1% | — |
| HumanEval+ | 43.9% | — |
| MBPP+ | 56.3% | — |

## Agentic & Tool Use

- Codellama 34b Instruct: —
- Llama 3.1-405B: 21.0 (#140)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| TheAgentCompany | — | 7.4% |
| Cybench | — | 7.5% |

## Reasoning

- Codellama 34b Instruct: 19.6 (#255)
- Llama 3.1-405B: 16.8 (#300)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| LMArena Hard Prompts | 1032 | 1269 |
| SimpleBench | — | 23% |
| Kagi LLM Benchmark | — | 45% |
| DTBench | — | 61.4% |
| BIG-Bench Hard | — | 82.9% |
| Epoch Capabilities Index | — | 128.75 |
| ForecastBench | — | 59.9 |
| HellaSwag | — | 89.2% |
| PIQA | — | 85.9% |
| WinoGrande | — | 89.2% |

## Math

- Codellama 34b Instruct: 31.0 (#230)
- Llama 3.1-405B: 18.4 (#290)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| LMArena Math | 1056 | 1281 |
| OTIS Mock AIME 2024-2025 | — | 9.7% |
| Omni-MATH | — | 24.9% |
| MATH Level 5 | — | 49.8% |

## Knowledge

- Codellama 34b Instruct: —
- Llama 3.1-405B: 30.4 (#227)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| GPQA Diamond | — | 50.9% |
| MMLU-Pro | — | 72.3% |
| Confabulations | — | 17.6% |
| GPQA (HELM) | — | 52.2% |
| LMArena Expert | — | 1243 |
| ARC (AI2) Challenge | — | 95.3% |
| MMLU | — | 84.5% |
| TriviaQA | — | 82.7% |

## Multilingual

- Codellama 34b Instruct: 25.8 (#284)
- Llama 3.1-405B: 40.7 (#214)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| LMArena Non-English | 1011 | 1248 |
| LMArena Chinese | 976 | 1242 |
| LMArena French | — | 1279 |
| LMArena German | — | 1252 |
| LMArena Japanese | — | 1208 |
| LMArena Korean | — | 1184 |
| LMArena Russian | — | 1265 |
| LMArena Spanish | — | 1260 |

## Instruction Following

- Codellama 34b Instruct: 52.2 (#291)
- Llama 3.1-405B: 65.9 (#214)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| LMArena Instruction Following | 1028 | 1259 |
| IFEval | — | 81.1% |

## Long Context

- Codellama 34b Instruct: 30.9 (#284)
- Llama 3.1-405B: 38.4 (#197)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| LMArena Longer Query | 1013 | 1266 |

## Writing & Preference

- Codellama 34b Instruct: 28.2 (#297)
- Llama 3.1-405B: 38.9 (#251)

| Benchmark | Codellama 34b Instruct | Llama 3.1-405B |
|---|---|---|
| LMArena Text | 1066 | 1284 |
| LMArena Creative Writing | 1032 | 1262 |
| LMArena Multi-Turn | 1015 | 1297 |
| EQ-Bench Creative Writing | — | 870 |
| WildBench | — | 78.3% |

## FAQ

### Is Codellama 34b Instruct better than Llama 3.1-405B?

Codellama 34b Instruct and Llama 3.1-405B score almost the same on the Noometry Index (30.8 vs 30.7), so choose on price, context window or the category you care about most.

### Is Codellama 34b Instruct or Llama 3.1-405B better for coding?

Llama 3.1-405B scores higher on coding benchmarks: 33.1 versus 28.5 in the Noometry coding category.

### How many benchmarks do Codellama 34b Instruct and Llama 3.1-405B share?

10 benchmarks have published results for both models. Codellama 34b Instruct has 14 scored results on Noometry and Llama 3.1-405B has 42.