# Grok 4 Fast vs Qwen3-Coder 480B-A35B Instruct

> Grok 4 Fast is the stronger model overall, scoring 39.0 to 37.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-4-fast-vs-qwen3-coder-480b-a35b-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Grok 4 Fast scores higher in 6 categories and Qwen3-Coder 480B-A35B Instruct in 3 categories; 9 gaps are clear of the uncertainty.
- The widest gap is in long context, where Grok 4 Fast leads 63.2 to 42.0.
- The biggest single-benchmark swing is Kagi LLM Benchmark: 66.1% for Grok 4 Fast and 49.5% for Qwen3-Coder 480B-A35B Instruct.
- Qwen3-Coder 480B-A35B Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| Provider | xAI | Alibaba (Qwen) |
| Noometry Index | 39.0 | 37.7 |
| Rank | 164 | 186 |
| Context | — | 262K |
| Input $/M | — | $1.50 |
| Output $/M | — | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Grok 4 Fast: 32.3 (#264)
- Qwen3-Coder 480B-A35B Instruct: 36.2 (#199)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena WebDev | 1160 | 1275 |
| WeirdML | 42.9% | 41.2% |
| LMArena Coding | 1429 | 1413 |
| SWE-bench Verified (bash only) | — | 55.4% |
| GSO | — | 4.9% |
| ALE-Bench | — | 461.45 |
| AlgoTune | — | 1.44 |

## Agentic & Tool Use

- Grok 4 Fast: 29.3 (#80)
- Qwen3-Coder 480B-A35B Instruct: 23.7 (#116)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| Terminal-Bench | — | 27.2% |
| τ²-bench Banking | 15.7% | — |
| Cybench | 30% | — |
| LMArena Search | 1171 | — |

## Reasoning

- Grok 4 Fast: 22.5 (#179)
- Qwen3-Coder 480B-A35B Instruct: 24.7 (#141)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| Kagi LLM Benchmark | 66.1% | 49.5% |
| LMArena Hard Prompts | 1413 | 1372 |
| ARC-AGI-2 | 5.3% | — |
| ARC-AGI-1 | 48.5% | — |
| DTBench | 82.7% | — |
| Epoch Capabilities Index | 144.21 | — |
| ForecastBench | 60.5 | — |

## Math

- Grok 4 Fast: 36.1 (#126)
- Qwen3-Coder 480B-A35B Instruct: 34.9 (#151)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Math | 1419 | 1364 |

## Knowledge

- Grok 4 Fast: 31.5 (#211)
- Qwen3-Coder 480B-A35B Instruct: 36.4 (#159)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Expert | 1411 | 1337 |
| Vectara Hallucination Rate | 19.7% | — |

## Multilingual

- Grok 4 Fast: 51.5 (#106)
- Qwen3-Coder 480B-A35B Instruct: 47.8 (#143)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Non-English | 1397 | 1345 |
| LMArena Chinese | 1458 | 1356 |
| LMArena French | 1433 | 1394 |
| LMArena German | 1383 | 1324 |
| LMArena Japanese | 1358 | 1309 |
| LMArena Korean | 1359 | 1307 |
| LMArena Russian | 1387 | 1367 |
| LMArena Spanish | 1414 | 1360 |

## Instruction Following

- Grok 4 Fast: 73.4 (#116)
- Qwen3-Coder 480B-A35B Instruct: 71.8 (#142)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Instruction Following | 1388 | 1356 |

## Long Context

- Grok 4 Fast: 63.2 (#3)
- Qwen3-Coder 480B-A35B Instruct: 42.0 (#126)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Longer Query | 1415 | 1379 |
| Fiction.LiveBench | 94.4% | — |

## Writing & Preference

- Grok 4 Fast: 60.2 (#96)
- Qwen3-Coder 480B-A35B Instruct: 55.5 (#142)

| Benchmark | Grok 4 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Text | 1407 | 1356 |
| LMArena Creative Writing | 1388 | 1333 |
| LMArena Multi-Turn | 1414 | 1365 |

## FAQ

### Is Grok 4 Fast better than Qwen3-Coder 480B-A35B Instruct?

Grok 4 Fast is the stronger model overall, scoring 39.0 to 37.7 on the Noometry Index.

### Is Grok 4 Fast or Qwen3-Coder 480B-A35B Instruct better for coding?

Qwen3-Coder 480B-A35B Instruct scores higher on coding benchmarks: 36.2 versus 32.3 in the Noometry coding category.

### How many benchmarks do Grok 4 Fast and Qwen3-Coder 480B-A35B Instruct share?

20 benchmarks have published results for both models. Grok 4 Fast has 30 scored results on Noometry and Qwen3-Coder 480B-A35B Instruct has 25.