# Grok 4.1 Fast vs Qwen3-Coder 480B-A35B Instruct

> Grok 4.1 Fast is the stronger model overall, scoring 40.9 to 37.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/grok-4-1-fast-vs-qwen3-coder-480b-a35b-instruct
- Last updated: 2026-10-10
- Shared benchmarks: 19

## Summary

- They share 19 benchmarks with published results for both. Grok 4.1 Fast scores higher in 6 categories and Qwen3-Coder 480B-A35B Instruct in 3 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.1 Fast leads 42.3 to 24.7.
- Grok 4.1 Fast is cheaper at $0.20 / $0.50 per million input/output tokens, against $1.50 / $7.50 for Qwen3-Coder 480B-A35B Instruct.
- Qwen3-Coder 480B-A35B Instruct accepts more context: 262K tokens versus 128K.
- Qwen3-Coder 480B-A35B Instruct has downloadable open weights; the other is API-only.

## Snapshot

| | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| Provider | xAI | Alibaba (Qwen) |
| Noometry Index | 40.9 | 37.7 |
| Rank | 131 | 186 |
| Context | 128K | 262K |
| Input $/M | $0.20 | $1.50 |
| Output $/M | $0.50 | $7.50 |
| Weights | Proprietary | Open |

## Coding

- Grok 4.1 Fast: 33.8 (#236)
- Qwen3-Coder 480B-A35B Instruct: 36.2 (#199)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena WebDev | 1241 | 1275 |
| LMArena Coding | 1411 | 1413 |
| ALE-Bench | 394.93 | 461.45 |
| SWE-bench Verified (bash only) | — | 55.4% |
| GSO | — | 4.9% |
| WeirdML | — | 41.2% |
| AlgoTune | — | 1.44 |

## Agentic & Tool Use

- Grok 4.1 Fast: 36.1 (#35)
- Qwen3-Coder 480B-A35B Instruct: 23.7 (#116)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| Terminal-Bench | — | 27.2% |
| Berkeley Function Calling Leaderboard | 69.6% | — |
| τ²-bench Banking | 13.1% | — |
| LMArena Search | 1171 | — |
| Vending-Bench 2 | 1,107 | — |

## Reasoning

- Grok 4.1 Fast: 42.3 (#45)
- Qwen3-Coder 480B-A35B Instruct: 24.7 (#141)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Hard Prompts | 1407 | 1372 |
| SimpleBench | 56% | — |
| Kagi LLM Benchmark | — | 49.5% |
| NYT Connections (extended) | 87.4% | — |
| DTBench | 87.7% | — |
| ForecastBench | 61 | — |

## Math

- Grok 4.1 Fast: 30.9 (#201)
- Qwen3-Coder 480B-A35B Instruct: 34.9 (#151)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Math | 1408 | 1364 |
| MathArena Final-Answer Competitions | 60.9% | — |
| ProofBench | 4% | — |

## Knowledge

- Grok 4.1 Fast: 32.6 (#203)
- Qwen3-Coder 480B-A35B Instruct: 36.4 (#159)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Expert | 1398 | 1337 |
| Vectara Hallucination Rate | 17.8% | — |

## Multimodal

- Grok 4.1 Fast: 36.3 (#71)
- Qwen3-Coder 480B-A35B Instruct: —

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Vision | 1201 | — |

## Multilingual

- Grok 4.1 Fast: 51.1 (#110)
- Qwen3-Coder 480B-A35B Instruct: 47.8 (#143)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Non-English | 1391 | 1345 |
| LMArena Chinese | 1441 | 1356 |
| LMArena French | 1416 | 1394 |
| LMArena German | 1404 | 1324 |
| LMArena Japanese | 1347 | 1309 |
| LMArena Korean | 1361 | 1307 |
| LMArena Russian | 1387 | 1367 |
| LMArena Spanish | 1411 | 1360 |

## Instruction Following

- Grok 4.1 Fast: 72.8 (#127)
- Qwen3-Coder 480B-A35B Instruct: 71.8 (#142)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Instruction Following | 1376 | 1356 |

## Long Context

- Grok 4.1 Fast: 42.4 (#121)
- Qwen3-Coder 480B-A35B Instruct: 42.0 (#126)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Longer Query | 1390 | 1379 |

## Writing & Preference

- Grok 4.1 Fast: 57.4 (#126)
- Qwen3-Coder 480B-A35B Instruct: 55.5 (#142)

| Benchmark | Grok 4.1 Fast | Qwen3-Coder 480B-A35B Instruct |
|---|---|---|
| LMArena Text | 1408 | 1356 |
| LMArena Creative Writing | 1394 | 1333 |
| LMArena Multi-Turn | 1389 | 1365 |
| EQ-Bench Creative Writing | 1327 | — |

## FAQ

### Is Grok 4.1 Fast better than Qwen3-Coder 480B-A35B Instruct?

Grok 4.1 Fast is the stronger model overall, scoring 40.9 to 37.7 on the Noometry Index.

### Which is cheaper, Grok 4.1 Fast or Qwen3-Coder 480B-A35B Instruct?

Grok 4.1 Fast is cheaper. It lists at $0.20 per million input tokens and $0.50 per million output tokens; Qwen3-Coder 480B-A35B Instruct lists at $1.50 and $7.50.

### Is Grok 4.1 Fast or Qwen3-Coder 480B-A35B Instruct better for coding?

Qwen3-Coder 480B-A35B Instruct scores higher on coding benchmarks: 36.2 versus 33.8 in the Noometry coding category.

### Which has the bigger context window?

Qwen3-Coder 480B-A35B Instruct does, with 262K tokens against 128K.

### How many benchmarks do Grok 4.1 Fast and Qwen3-Coder 480B-A35B Instruct share?

19 benchmarks have published results for both models. Grok 4.1 Fast has 32 scored results on Noometry and Qwen3-Coder 480B-A35B Instruct has 25.