# Mixtral 8x7B vs Qwen3.5 Plus

> Qwen3.5 Plus is the stronger model overall, scoring 42.3 to 26.8 on the Noometry Index.

- Canonical page: https://noometry.com/compare/mixtral-8x7b-vs-qwen3-5-plus
- Last updated: 2026-10-10
- Shared benchmarks: 3

## Summary

- They share 3 benchmarks with published results for both. Mixtral 8x7B scores higher in 0 categories and Qwen3.5 Plus in 4 categories; 4 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Qwen3.5 Plus leads 46.0 to 11.0.
- The biggest single-benchmark swing is GPQA Diamond: 30.6% for Mixtral 8x7B and 84.8% for Qwen3.5 Plus.
- Mixtral 8x7B is cheaper at $0.70 / $0.70 per million input/output tokens, against $0.40 / $2.40 for Qwen3.5 Plus.
- Qwen3.5 Plus accepts more context: 1M tokens versus 32K.
- Mixtral 8x7B has downloadable open weights; the other is API-only.

## Snapshot

| | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| Provider | Mistral AI | Alibaba (Qwen) |
| Noometry Index | 26.8 | 42.3 |
| Rank | 328 | 103 |
| Context | 32K | 1M |
| Input $/M | $0.70 | $0.40 |
| Output $/M | $0.70 | $2.40 |
| Weights | Open | Proprietary |

## Coding

- Mixtral 8x7B: 32.2 (#265)
- Qwen3.5 Plus: —

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| LMArena Coding | 1127 | — |
| ALE-Bench | — | 621.92 |
| HumanEval+ | 39.6% | — |
| MBPP+ | 49.7% | — |

## Agentic & Tool Use

- Mixtral 8x7B: —
- Qwen3.5 Plus: —

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| Vending-Bench 2 | — | 0.54 |

## Reasoning

- Mixtral 8x7B: 17.4 (#283)
- Qwen3.5 Plus: 32.0 (#67)

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| DTBench | 49.6% | 80.5% |
| Epoch Capabilities Index | 118.38 | 146.79 |
| Chess Puzzles | — | 22% |
| LMArena Hard Prompts | 1115 | — |
| Mystery Game Puzzles | — | 17% |
| LMCA | — | 36.4% |
| Adversarial NLI | 55.2% | — |
| ForecastBench | 56.3 | — |
| HellaSwag | 86.7% | — |
| PIQA | 83.6% | — |
| WinoGrande | 77.2% | — |

## Math

- Mixtral 8x7B: 17.2 (#284)
- Qwen3.5 Plus: 47.9 (#55)

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| OTIS Mock AIME 2024-2025 | — | 86.7% |
| Omni-MATH | 10.5% | — |
| LMArena Math | 1147 | — |
| MATH Level 5 | 10% | — |
| FrontierMath (Feb 2025 set) | — | 21% |
| FrontierMath Tier 4 (v1) | — | 2.1% |
| GSM8K | 74.4% | — |

## Knowledge

- Mixtral 8x7B: 11.0 (#296)
- Qwen3.5 Plus: 46.0 (#78)

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| GPQA Diamond | 30.6% | 84.8% |
| SimpleQA Verified | — | 25.4% |
| MMLU-Pro | 33.5% | — |
| Vectara Hallucination Rate | — | 10.7% |
| GPQA (HELM) | 29.6% | — |
| LMArena Expert | 1088 | — |
| ARC (AI2) Challenge | 87.3% | — |
| MMLU | 70.6% | — |
| OpenBookQA | 85.8% | — |
| TriviaQA | 82.2% | — |

## Multilingual

- Mixtral 8x7B: 29.8 (#261)
- Qwen3.5 Plus: —

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| LMArena Non-English | 1077 | — |
| LMArena Chinese | 1055 | — |
| LMArena French | 1165 | — |
| LMArena German | 1114 | — |
| LMArena Japanese | 931 | — |
| LMArena Korean | 968 | — |
| LMArena Russian | 1090 | — |
| LMArena Spanish | 1110 | — |

## Instruction Following

- Mixtral 8x7B: 51.2 (#292)
- Qwen3.5 Plus: —

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| IFEval | 57.5% | — |
| LMArena Instruction Following | 1110 | — |

## Long Context

- Mixtral 8x7B: 33.4 (#255)
- Qwen3.5 Plus: 42.9 (#109)

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| CL-bench | — | 19.8% |
| CL-bench Life | — | 12.4% |
| LMArena Longer Query | 1103 | — |

## Writing & Preference

- Mixtral 8x7B: 34.4 (#265)
- Qwen3.5 Plus: —

| Benchmark | Mixtral 8x7B | Qwen3.5 Plus |
|---|---|---|
| LMArena Text | 1132 | — |
| LMArena Creative Writing | 1109 | — |
| WildBench | 67.3% | — |
| LMArena Multi-Turn | 1115 | — |

## FAQ

### Is Mixtral 8x7B better than Qwen3.5 Plus?

Qwen3.5 Plus is the stronger model overall, scoring 42.3 to 26.8 on the Noometry Index.

### Which is cheaper, Mixtral 8x7B or Qwen3.5 Plus?

Mixtral 8x7B is cheaper. It lists at $0.70 per million input tokens and $0.70 per million output tokens; Qwen3.5 Plus lists at $0.40 and $2.40.

### Which has the bigger context window?

Qwen3.5 Plus does, with 1M tokens against 32K.

### How many benchmarks do Mixtral 8x7B and Qwen3.5 Plus share?

3 benchmarks have published results for both models. Mixtral 8x7B has 38 scored results on Noometry and Qwen3.5 Plus has 15.