# Mistral Medium 3.5 128B vs Qwen3.5-35B-A3B

> Side-by-side benchmark comparison for Mistral Medium 3.5 128B and Qwen3.5-35B-A3B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mistral-medium-3-5-128b-vs-qwen3-5-35b-a3b
- Last updated: September 10, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Mistral Medium 3.5 128B and Qwen3.5-35B-A3B share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Qwen3.5-35B-A3B has the lower published output-token price.
- Qwen3.5-35B-A3B has the larger published context window at 262K.

## Model Snapshot

| Property | Mistral Medium 3.5 128B | Qwen3.5-35B-A3B |
|----------|----------|----------|
| Creator | Mistral | Alibaba |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 262K |
| Independent public score (not head-to-head) | 30.13 | 53.39 |
| Benchmarks Covered | 7 | 16 |
| Pricing (input/output) | $1.50 / $7.50 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Mistral Medium 3.5 128B public-lane score: 21.9 (Supported · #150/152)
- Qwen3.5-35B-A3B public-lane score: 45 (Estimated · #86/152)

| Benchmark | Mistral Medium 3.5 128B | Qwen3.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | 91.4% | Coming soon | Coming soon |
| Gert Labs | 39.10% | 28.96% | Mistral Medium 3.5 128B |
| Terminal-Bench 2.1 (Vals) | 39.0% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 40.5% | Coming soon |
| BrowseComp | Coming soon | 61% | Coming soon |
| OSWorld-Verified | Coming soon | 54.5% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Mistral Medium 3.5 128B public-lane score: 36.9 (Estimated · #127/151)
- Qwen3.5-35B-A3B public-lane score: 45.5 (Estimated · #87/151)

| Benchmark | Mistral Medium 3.5 128B | Qwen3.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 77.6% | 69.2% | Mistral Medium 3.5 128B |
| SWE-bench (Vals) | 66.4% | Coming soon | Coming soon |
| SWE-Rebench | Coming soon | 53.7% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Mistral Medium 3.5 128B public-lane score: 55.6 (Unranked · 1 rankable row)
- Qwen3.5-35B-A3B public-lane score: 67.1 (Unranked · 3 rankable rows)

| Benchmark | Mistral Medium 3.5 128B | Qwen3.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| MMMU | Coming soon | 81.4% | Coming soon |
| MMVU | Coming soon | 72.3% | Coming soon |
| MathVision | Coming soon | 83.9% | Coming soon |
| V* | Coming soon | 92.7% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Mistral Medium 3.5 128B public-lane score: 68.6 (Unranked · 2 rankable rows)
- Qwen3.5-35B-A3B public-lane score: 40.2 (Unranked · 3 rankable rows)

| Benchmark | Mistral Medium 3.5 128B | Qwen3.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 59% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Mistral Medium 3.5 128B public-lane score: 39 (Supported · #140/183)
- Qwen3.5-35B-A3B public-lane score: 45.4 (Supported · #107/183)

| Benchmark | Mistral Medium 3.5 128B | Qwen3.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 34.8% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 75.3% | Coming soon | Coming soon |
| MMLU-Pro | Coming soon | 85.3% | Coming soon |
| SuperGPQA | Coming soon | 63.4% | Coming soon |
| GPQA | Coming soon | 84.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Mistral Medium 3.5 128B public-lane score: 84 (#48/123)
- Qwen3.5-35B-A3B public-lane score: 88.8 (#29/123)

| Benchmark | Mistral Medium 3.5 128B | Qwen3.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 91.9% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Mistral Medium 3.5 128B public-lane score: Coming soon
- Qwen3.5-35B-A3B public-lane score: 21.1 (#11/12)

| Benchmark | Mistral Medium 3.5 128B | Qwen3.5-35B-A3B | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | Coming soon | 81% | Coming soon |

## FAQ

### Is there enough evidence to pick between Mistral Medium 3.5 128B and Qwen3.5-35B-A3B?

Not yet. The models share only 2 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Mistral Medium 3.5 128B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-mistral-medium-3-5-128b)
- [Qwen3.5-35B-A3B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-qwen3-5-35b-a3b)
- [Mistral Medium 3.5 128B vs GPT-6 Astra](/compare/gpt-6-astra-vs-mistral-medium-3-5-128b)
- [Qwen3.5-35B-A3B vs GPT-6 Astra](/compare/gpt-6-astra-vs-qwen3-5-35b-a3b)

## Explore More

- [Mistral Medium 3.5 128B profile](/models/mistral-medium-3-5-128b)
- [Qwen3.5-35B-A3B profile](/models/qwen3-5-35b-a3b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)