# Grok 4.6 vs Qwen3.5 Plus

> Grok 4.6 is the stronger model overall, scoring 56.9 to 42.9 on the Noometry Index. Qwen3.5 Plus costs 3.3× less per token, which makes it the better buy when Grok 4.6's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/grok-4-6-vs-qwen3-5-plus
- Last updated: 2026-10-10
- Shared benchmarks: 10

## Summary

- They share 10 benchmarks with published results for both. Grok 4.6 scores higher in 4 categories and Qwen3.5 Plus in 0 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in reasoning, where Grok 4.6 leads 61.4 to 32.8.
- The biggest single-benchmark swing is SimpleQA Verified: 49.3% for Grok 4.6 and 25.4% for Qwen3.5 Plus.
- Qwen3.5 Plus is cheaper at $0.40 / $2.40 per million input/output tokens, against $2 / $6 for Grok 4.6.
- Qwen3.5 Plus accepts more context: 1M tokens versus 500K.

## Snapshot

| | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| Provider | xAI | Alibaba (Qwen) |
| Noometry Index | 56.9 | 42.9 |
| Rank | 21 | 106 |
| Context | 500K | 1M |
| Input $/M | $2 | $0.40 |
| Output $/M | $6 | $2.40 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok 4.6: 58.5 (#16)
- Qwen3.5 Plus: —

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| ALE-Bench | 1,508 | 621.92 |
| DeepSWE | 67.5% | — |
| FrontierCode | 48% | — |
| CursorBench | 41.4% | — |
| LMArena WebDev | 1617 | — |
| FrontierSWE | 25.3% | — |
| SciCode | 56.5% | — |
| WeirdML | 67.3% | — |
| LMArena Coding | 1465 | — |

## Agentic & Tool Use

- Grok 4.6: 39.4 (#27)
- Qwen3.5 Plus: —

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| Vending-Bench 2 | 9,047 | 0.54 |
| APEX-Agents | 65.3% | — |
| GDP.pdf | 17.2% | — |

## Reasoning

- Grok 4.6: 61.4 (#20)
- Qwen3.5 Plus: 32.8 (#74)

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| Chess Puzzles | 40% | 22% |
| Mystery Game Puzzles | 34% | 17% |
| DTBench | 97.3% | 80.5% |
| LMCA | 48.5% | 36.4% |
| Epoch Capabilities Index | 156.44 | 146.78 |
| ARC-AGI-2 | 67.1% | — |
| SimpleBench | 75.9% | — |
| NYT Connections (extended) | 80% | — |
| ARC-AGI-1 | 87.5% | — |
| CritPt | 19.7% | — |
| EBR-Bench | 30.5% | — |
| LMArena Hard Prompts | 1447 | — |

## Math

- Grok 4.6: 67.0 (#24)
- Qwen3.5 Plus: 49.6 (#61)

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 99.2% | 86.7% |
| FrontierMath (Tiers 1-3) | 66% | — |
| FrontierMath Tier 4 | 31.7% | — |
| ProofBench | 51% | — |
| LMArena Math | 1423 | — |
| FrontierMath (Feb 2025 set) | — | 21% |
| FrontierMath Tier 4 (v1) | — | 2.1% |

## Knowledge

- Grok 4.6: 63.3 (#20)
- Qwen3.5 Plus: 46.0 (#83)

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| GPQA Diamond | 94% | 84.8% |
| SimpleQA Verified | 49.3% | 25.4% |
| Vectara Hallucination Rate | — | 10.7% |
| LMArena Expert | 1467 | — |

## Multimodal

- Grok 4.6: 43.6 (#23)
- Qwen3.5 Plus: —

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| LMArena Vision | 1263 | — |
| Blueprint-Bench 2 | 33.2% | — |
| Furniture Assembly | 40% | — |
| LMArena Document | 1452 | — |

## Multilingual

- Grok 4.6: 53.0 (#74)
- Qwen3.5 Plus: —

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| LMArena Non-English | 1420 | — |
| LMArena Chinese | 1480 | — |
| LMArena French | 1461 | — |
| LMArena German | 1431 | — |
| LMArena Japanese | 1376 | — |
| LMArena Korean | 1397 | — |
| LMArena Russian | 1422 | — |
| LMArena Spanish | 1404 | — |

## Instruction Following

- Grok 4.6: 75.4 (#63)
- Qwen3.5 Plus: —

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| LMArena Instruction Following | 1431 | — |

## Long Context

- Grok 4.6: 44.5 (#66)
- Qwen3.5 Plus: 43.0 (#113)

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| CL-bench | — | 19.8% |
| CL-bench Life | — | 12.4% |
| LMArena Longer Query | 1454 | — |

## Writing & Preference

- Grok 4.6: 62.3 (#80)
- Qwen3.5 Plus: —

| Benchmark | Grok 4.6 | Qwen3.5 Plus |
|---|---|---|
| LMArena Text | 1428 | — |
| LMArena Creative Writing | 1428 | — |
| LMArena Multi-Turn | 1425 | — |

## FAQ

### Is Grok 4.6 better than Qwen3.5 Plus?

Grok 4.6 is the stronger model overall, scoring 56.9 to 42.9 on the Noometry Index. Qwen3.5 Plus costs 3.3× less per token, which makes it the better buy when Grok 4.6's lead doesn't matter for your workload.

### Which is cheaper, Grok 4.6 or Qwen3.5 Plus?

Qwen3.5 Plus is cheaper. It lists at $0.40 per million input tokens and $2.40 per million output tokens; Grok 4.6 lists at $2 and $6.

### Which has the bigger context window?

Qwen3.5 Plus does, with 1M tokens against 500K.

### How many benchmarks do Grok 4.6 and Qwen3.5 Plus share?

10 benchmarks have published results for both models. Grok 4.6 has 49 scored results on Noometry and Qwen3.5 Plus has 15.