# Codellama 34b Instruct vs Grok 4.1 Fast

> Grok 4.1 Fast is the stronger model overall, scoring 40.9 to 30.2 on the Noometry Index.

- Canonical page: https://noometry.com/compare/codellama-34b-instruct-vs-grok-4-1-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 4.1 Fast in 7 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in writing & preference, where Grok 4.1 Fast leads 57.4 to 28.4.
- Codellama 34b Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| Provider | Meta | xAI |
| Noometry Index | 30.2 | 40.9 |
| Rank | 285 | 131 |
| Context | — | 128K |
| Input $/M | — | $0.20 |
| Output $/M | — | $0.50 |
| Weights | Open | Proprietary |

## Coding

- Codellama 34b Instruct: 28.0 (#310)
- Grok 4.1 Fast: 33.8 (#236)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| LMArena Coding | 1046 | 1411 |
| LMArena WebDev | — | 1241 |
| BigCodeBench Instruct | 29% | — |
| BigCodeBench Complete | 37.1% | — |
| ALE-Bench | — | 394.93 |
| HumanEval+ | 43.9% | — |
| MBPP+ | 56.3% | — |

## Agentic & Tool Use

- Codellama 34b Instruct: —
- Grok 4.1 Fast: 36.1 (#35)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| Berkeley Function Calling Leaderboard | — | 69.6% |
| τ²-bench Banking | — | 13.1% |
| LMArena Search | — | 1171 |
| Vending-Bench 2 | — | 1,107 |

## Reasoning

- Codellama 34b Instruct: 18.8 (#250)
- Grok 4.1 Fast: 42.3 (#45)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| LMArena Hard Prompts | 1032 | 1407 |
| SimpleBench | — | 56% |
| NYT Connections (extended) | — | 87.4% |
| DTBench | — | 87.7% |
| ForecastBench | — | 61 |

## Math

- Codellama 34b Instruct: 28.5 (#227)
- Grok 4.1 Fast: 30.9 (#201)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| LMArena Math | 1056 | 1408 |
| MathArena Final-Answer Competitions | — | 60.9% |
| ProofBench | — | 4% |

## Knowledge

- Codellama 34b Instruct: —
- Grok 4.1 Fast: 32.6 (#203)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| Vectara Hallucination Rate | — | 17.8% |
| LMArena Expert | — | 1398 |

## Multimodal

- Codellama 34b Instruct: —
- Grok 4.1 Fast: 36.3 (#71)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| LMArena Vision | — | 1201 |

## Multilingual

- Codellama 34b Instruct: 25.9 (#279)
- Grok 4.1 Fast: 51.1 (#110)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| LMArena Non-English | 1011 | 1391 |
| LMArena Chinese | 976 | 1441 |
| LMArena French | — | 1416 |
| LMArena German | — | 1404 |
| LMArena Japanese | — | 1347 |
| LMArena Korean | — | 1361 |
| LMArena Russian | — | 1387 |
| LMArena Spanish | — | 1411 |

## Instruction Following

- Codellama 34b Instruct: 52.4 (#286)
- Grok 4.1 Fast: 72.8 (#127)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| LMArena Instruction Following | 1028 | 1376 |

## Long Context

- Codellama 34b Instruct: 30.8 (#279)
- Grok 4.1 Fast: 42.4 (#121)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| LMArena Longer Query | 1014 | 1390 |

## Writing & Preference

- Codellama 34b Instruct: 28.4 (#292)
- Grok 4.1 Fast: 57.4 (#126)

| Benchmark | Codellama 34b Instruct | Grok 4.1 Fast |
|---|---|---|
| LMArena Text | 1066 | 1408 |
| LMArena Creative Writing | 1032 | 1394 |
| LMArena Multi-Turn | 1015 | 1389 |
| EQ-Bench Creative Writing | — | 1327 |

## FAQ

### Is Codellama 34b Instruct better than Grok 4.1 Fast?

Grok 4.1 Fast is the stronger model overall, scoring 40.9 to 30.2 on the Noometry Index.

### Is Codellama 34b Instruct or Grok 4.1 Fast better for coding?

Grok 4.1 Fast scores higher on coding benchmarks: 33.8 versus 28.0 in the Noometry coding category.

### How many benchmarks do Codellama 34b Instruct and Grok 4.1 Fast share?

10 benchmarks have published results for both models. Codellama 34b Instruct has 14 scored results on Noometry and Grok 4.1 Fast has 32.