# Codellama 34b Instruct vs Grok 4 Fast

> Grok 4 Fast is the stronger model overall, scoring 39.0 to 30.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/codellama-34b-instruct-vs-grok-4-fast
- Last updated: 2026-10-10
- Shared benchmarks: 10

## Summary

- They share 10 benchmarks with published results for both. Codellama 34b Instruct scores higher in 0 categories and Grok 4 Fast in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in long context, where Grok 4 Fast leads 63.2 to 30.8.
- Codellama 34b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| Provider | Meta | xAI |
| Noometry Index | 30.2 | 39.0 |
| Rank | 285 | 164 |
| Context | — | — |
| Input $/M | — | — |
| Output $/M | — | — |
| Weights | Open | Proprietary |

## Coding

- Codellama 34b Instruct: 28.0 (#310)
- Grok 4 Fast: 32.3 (#264)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| LMArena Coding | 1046 | 1429 |
| LMArena WebDev | — | 1160 |
| WeirdML | — | 42.9% |
| BigCodeBench Instruct | 29% | — |
| BigCodeBench Complete | 37.1% | — |
| HumanEval+ | 43.9% | — |
| MBPP+ | 56.3% | — |

## Agentic & Tool Use

- Codellama 34b Instruct: —
- Grok 4 Fast: 29.3 (#80)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| τ²-bench Banking | — | 15.7% |
| Cybench | — | 30% |
| LMArena Search | — | 1171 |

## Reasoning

- Codellama 34b Instruct: 18.8 (#250)
- Grok 4 Fast: 22.5 (#179)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| LMArena Hard Prompts | 1032 | 1413 |
| ARC-AGI-2 | — | 5.3% |
| Kagi LLM Benchmark | — | 66.1% |
| ARC-AGI-1 | — | 48.5% |
| DTBench | — | 82.7% |
| Epoch Capabilities Index | — | 144.21 |
| ForecastBench | — | 60.5 |

## Math

- Codellama 34b Instruct: 28.5 (#227)
- Grok 4 Fast: 36.1 (#126)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| LMArena Math | 1056 | 1419 |

## Knowledge

- Codellama 34b Instruct: —
- Grok 4 Fast: 31.5 (#211)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| Vectara Hallucination Rate | — | 19.7% |
| LMArena Expert | — | 1411 |

## Multilingual

- Codellama 34b Instruct: 25.9 (#279)
- Grok 4 Fast: 51.5 (#106)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| LMArena Non-English | 1011 | 1397 |
| LMArena Chinese | 976 | 1458 |
| LMArena French | — | 1433 |
| LMArena German | — | 1383 |
| LMArena Japanese | — | 1358 |
| LMArena Korean | — | 1359 |
| LMArena Russian | — | 1387 |
| LMArena Spanish | — | 1414 |

## Instruction Following

- Codellama 34b Instruct: 52.4 (#286)
- Grok 4 Fast: 73.4 (#116)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| LMArena Instruction Following | 1028 | 1388 |

## Long Context

- Codellama 34b Instruct: 30.8 (#279)
- Grok 4 Fast: 63.2 (#3)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| LMArena Longer Query | 1014 | 1415 |
| Fiction.LiveBench | — | 94.4% |

## Writing & Preference

- Codellama 34b Instruct: 28.4 (#292)
- Grok 4 Fast: 60.2 (#96)

| Benchmark | Codellama 34b Instruct | Grok 4 Fast |
|---|---|---|
| LMArena Text | 1066 | 1407 |
| LMArena Creative Writing | 1032 | 1388 |
| LMArena Multi-Turn | 1015 | 1414 |

## FAQ

### Is Codellama 34b Instruct better than Grok 4 Fast?

Grok 4 Fast is the stronger model overall, scoring 39.0 to 30.2 on the Noometry Index.

### Is Codellama 34b Instruct or Grok 4 Fast better for coding?

Grok 4 Fast scores higher on coding benchmarks: 32.3 versus 28.0 in the Noometry coding category.

### How many benchmarks do Codellama 34b Instruct and Grok 4 Fast share?

10 benchmarks have published results for both models. Codellama 34b Instruct has 14 scored results on Noometry and Grok 4 Fast has 30.