# Qwen3.5-35B-A3B vs Seed 2.1 Turbo

> Side-by-side benchmark comparison for Qwen3.5-35B-A3B and Seed 2.1 Turbo across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/qwen3-5-35b-a3b-vs-seed-2-1-turbo
- 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: Qwen3.5-35B-A3B and Seed 2.1 Turbo 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.
- Seed 2.1 Turbo has the lower published output-token price.
- Qwen3.5-35B-A3B has the larger published context window at 262K.

## Model Snapshot

| Property | Qwen3.5-35B-A3B | Seed 2.1 Turbo |
|----------|----------|----------|
| Creator | Alibaba | ByteDance |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 256K |
| Independent public score (not head-to-head) | 53.39 | null |
| Benchmarks Covered | 16 | 11 |
| Pricing (input/output) | $0.00 / $0.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Qwen3.5-35B-A3B public-lane score: 45 (Estimated · #86/152)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.5-35B-A3B | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 40.5% | Coming soon | Coming soon |
| BrowseComp | 61% | Coming soon | Coming soon |
| OSWorld-Verified | 54.5% | Coming soon | Coming soon |
| Gert Labs | 28.96% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 67.6% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Qwen3.5-35B-A3B public-lane score: 45.5 (Estimated · #87/151)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.5-35B-A3B | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 69.2% | Coming soon | Coming soon |
| SWE-Rebench | 53.7% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 67.6% | Coming soon |
| NL2Repo | Coming soon | 43.7% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Qwen3.5-35B-A3B public-lane score: 67.1 (Unranked · 3 rankable rows)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.5-35B-A3B | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| MMMU | 81.4% | Coming soon | Coming soon |
| MMVU | 72.3% | Coming soon | Coming soon |
| MathVision | 83.9% | 90.1% | Seed 2.1 Turbo |
| V* | 92.7% | Coming soon | Coming soon |
| MMMU-Pro | Coming soon | 80.1% | Coming soon |
| ZeroBench | Coming soon | 11.0% | Coming soon |
| BabyVision | Coming soon | 62.9% | Coming soon |
| CharXiv | Coming soon | 82.5% | Coming soon |
| ERQA | Coming soon | 71.3% | Coming soon |
| Video-MME | Coming soon | 89.0% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Qwen3.5-35B-A3B public-lane score: 40.2 (Unranked · 3 rankable rows)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.5-35B-A3B | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 59% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Qwen3.5-35B-A3B public-lane score: 45.4 (Supported · #107/183)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.5-35B-A3B | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| MMLU-Pro | 85.3% | Coming soon | Coming soon |
| SuperGPQA | 63.4% | 67.4% | Seed 2.1 Turbo |
| GPQA | 84.2% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Qwen3.5-35B-A3B public-lane score: 88.8 (#29/123)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.5-35B-A3B | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 91.9% | Coming soon | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Qwen3.5-35B-A3B public-lane score: 21.1 (#11/12)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.5-35B-A3B | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | 81% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Qwen3.5-35B-A3B and Seed 2.1 Turbo?

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

- [Qwen3.5-35B-A3B vs Seed 2.1 Pro](/compare/qwen3-5-35b-a3b-vs-seed-2-1-pro)
- [Seed 2.1 Turbo vs Seed 2.1 Pro](/compare/seed-2-1-pro-vs-seed-2-1-turbo)
- [Qwen3.5-35B-A3B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-qwen3-5-35b-a3b)
- [Seed 2.1 Turbo vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-seed-2-1-turbo)

## Explore More

- [Qwen3.5-35B-A3B profile](/models/qwen3-5-35b-a3b)
- [Seed 2.1 Turbo profile](/models/seed-2-1-turbo)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)