# Qwen Max vs Qwen3.5-Flash

> Qwen3.5-Flash is the stronger model overall, scoring 42.5 to 34.7 on the Noometry Index.

- Canonical page: https://noometry.com/compare/qwen-max-vs-qwen3-5-flash
- Last updated: 2026-10-12
- Shared benchmarks: 20

## Summary

- They share 20 benchmarks with published results for both. Qwen Max scores higher in 0 categories and Qwen3.5-Flash in 8 categories; 8 gaps are clear of the uncertainty.
- The widest gap is in math, where Qwen3.5-Flash leads 37.4 to 22.3.
- The biggest single-benchmark swing is OTIS Mock AIME 2024-2025: 16.1% for Qwen Max and 84.4% for Qwen3.5-Flash.
- Qwen3.5-Flash is cheaper at $0.10 / $0.40 per million input/output tokens, against $1.60 / $6.40 for Qwen Max.
- Qwen3.5-Flash accepts more context: 1M tokens versus 33K.

## Snapshot

| | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| Provider | Alibaba (Qwen) | Alibaba (Qwen) |
| Noometry Index | 34.7 | 42.5 |
| Rank | 230 | 112 |
| Context | 33K | 1M |
| Input $/M | $1.60 | $0.10 |
| Output $/M | $6.40 | $0.40 |
| Weights | Proprietary | Proprietary |

## Coding

- Qwen Max: 30.7 (#292)
- Qwen3.5-Flash: 34.2 (#242)

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| LMArena Coding | 1288 | 1412 |
| Aider Polyglot | 21.8% | — |
| LMArena WebDev | — | 1244 |
| ALE-Bench | — | 221.8 |

## Agentic & Tool Use

- Qwen Max: —
- Qwen3.5-Flash: —

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| Vending-Bench 2 | — | 462.69 |

## Reasoning

- Qwen Max: 25.1 (#151)
- Qwen3.5-Flash: 33.7 (#72)

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| LMArena Hard Prompts | 1269 | 1403 |
| Chess Puzzles | — | 21% |
| Mystery Game Puzzles | — | 20% |
| DTBench | — | 82.9% |
| LMCA | — | 29.1% |
| Epoch Capabilities Index | — | 143.98 |

## Math

- Qwen Max: 22.3 (#276)
- Qwen3.5-Flash: 37.4 (#158)

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 16.1% | 84.4% |
| LMArena Math | 1275 | 1407 |
| FrontierMath (Feb 2025 set) | 1% | 6.2% |
| FrontierMath (Tiers 1-3) | — | 18.2% |
| MATH Level 5 | 67.2% | — |
| FrontierMath Tier 4 (v1) | — | 0% |

## Knowledge

- Qwen Max: 30.3 (#228)
- Qwen3.5-Flash: 43.2 (#93)

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| GPQA Diamond | 56.1% | 82.3% |
| LMArena Expert | 1248 | 1407 |
| SimpleQA Verified | — | 20.3% |
| Vectara Hallucination Rate | — | 10.5% |

## Multilingual

- Qwen Max: 41.8 (#202)
- Qwen3.5-Flash: 50.5 (#121)

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| LMArena Non-English | 1263 | 1385 |
| LMArena Chinese | 1254 | 1446 |
| LMArena French | 1330 | 1412 |
| LMArena German | 1254 | 1390 |
| LMArena Japanese | 1205 | 1368 |
| LMArena Korean | 1142 | 1344 |
| LMArena Russian | 1274 | 1379 |
| LMArena Spanish | 1290 | 1400 |

## Instruction Following

- Qwen Max: 66.5 (#208)
- Qwen3.5-Flash: 72.6 (#139)

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| LMArena Instruction Following | 1262 | 1374 |

## Long Context

- Qwen Max: 39.4 (#180)
- Qwen3.5-Flash: 42.4 (#124)

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| LMArena Longer Query | 1288 | 1392 |
| Fiction.LiveBench | 66.7% | — |

## Writing & Preference

- Qwen Max: 47.8 (#205)
- Qwen3.5-Flash: 57.9 (#122)

| Benchmark | Qwen Max | Qwen3.5-Flash |
|---|---|---|
| LMArena Text | 1282 | 1397 |
| LMArena Creative Writing | 1248 | 1343 |
| LMArena Multi-Turn | 1277 | 1393 |

## FAQ

### Is Qwen Max better than Qwen3.5-Flash?

Qwen3.5-Flash is the stronger model overall, scoring 42.5 to 34.7 on the Noometry Index.

### Which is cheaper, Qwen Max or Qwen3.5-Flash?

Qwen3.5-Flash is cheaper. It lists at $0.10 per million input tokens and $0.40 per million output tokens; Qwen Max lists at $1.60 and $6.40.

### Is Qwen Max or Qwen3.5-Flash better for coding?

Qwen3.5-Flash scores higher on coding benchmarks: 34.2 versus 30.7 in the Noometry coding category.

### Which has the bigger context window?

Qwen3.5-Flash does, with 1M tokens against 33K.

### How many benchmarks do Qwen Max and Qwen3.5-Flash share?

20 benchmarks have published results for both models. Qwen Max has 23 scored results on Noometry and Qwen3.5-Flash has 32.