# Qwen3.8 Max vs Seed 2.1 Turbo

> Side-by-side benchmark comparison for Qwen3.8 Max and Seed 2.1 Turbo across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/qwen3-8-max-vs-seed-2-1-turbo
- Last updated: September 10, 2026

- Shared sourced benchmarks: 9
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick Qwen3.8 Max if you want the stronger benchmark profile. Seed 2.1 Turbo only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Qwen3.8 Max leads overall 71.63 to 0.
- The biggest single benchmark swing is BabyVision in Multimodal & Grounded, with scores of 82.0% and 62.9%.
- Qwen3.8 Max also has the larger context window at 1M.

## Model Snapshot

| Property | Qwen3.8 Max | Seed 2.1 Turbo |
|----------|----------|----------|
| Creator | Alibaba | ByteDance |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Overall Score | 71.63 | null |
| Benchmarks Covered | 60 | 11 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Qwen3.8 Max public-lane score: 67.2 (Supported · #9/152)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.8 Max | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 86.6% | 67.6% | Qwen3.8 Max |
| CoWorkBench | 74.8% | Coming soon | Coming soon |
| JobBench | 53.4% | Coming soon | Coming soon |
| skillsBench | 70.2% | Coming soon | Coming soon |
| Agents' Last Exam | 52.4% | Coming soon | Coming soon |
| AutomationBench | 27.3% | Coming soon | Coming soon |
| Toolathlon-Verified | 72.5% | Coming soon | Coming soon |
| WideResearch | 81.9% | Coming soon | Coming soon |
| HLE w/ tools | 56.2% | Coming soon | Coming soon |
| OSWorld-Verified | 86.1% | Coming soon | Coming soon |
| OSWorld 2.0 | 19.4% | Coming soon | Coming soon |
| WebArena-Verified | 66.8% | Coming soon | Coming soon |
| AndroidWorld | 85.3% | Coming soon | Coming soon |
| MobileWorld | 77.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 67.4% | Coming soon | Coming soon |

### Coding

- Winner: Coming soon
- Qwen3.8 Max public-lane score: 60.8 (Supported · #20/151)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.8 Max | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 86.6% | 67.6% | Qwen3.8 Max |
| SWE-bench Pro | 67.7% | Coming soon | Coming soon |
| DeepSWE | 56.6% | Coming soon | Coming soon |
| NL2Repo | 55.9% | 43.7% | Qwen3.8 Max |
| FrontierSWE | 73.5% | Coming soon | Coming soon |
| MLS-Bench Lite | 41.0% | Coming soon | Coming soon |
| PaperBench | 93.0% | Coming soon | Coming soon |
| VulcanBench v3 | 81.2% | Coming soon | Coming soon |
| OpenHarmony Bench | 60.8% | Coming soon | Coming soon |
| FrontierSWE v2 | 15.8% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.9% | Coming soon | Coming soon |
| SWE-bench (Vals) | 85.6% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Qwen3.8 Max public-lane score: 87.4 (#5/48)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.8 Max | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 82.3% | 80.1% | Qwen3.8 Max |
| MathVision | 95.2% | 90.1% | Qwen3.8 Max |
| MathVision w/ Python | 97.7% | Coming soon | Coming soon |
| BabyVision | 82.0% | 62.9% | Qwen3.8 Max |
| BabyVision w/ Python | 91.3% | Coming soon | Coming soon |
| ZeroBench | 24.0% | 11.0% | Qwen3.8 Max |
| ZeroBench w/ Python | 49.0% | Coming soon | Coming soon |
| MedXpertQA (MM) | 80.4% | Coming soon | Coming soon |
| ScreenSpot Pro | 84.5% | Coming soon | Coming soon |
| Vision2Web | 69.0% | Coming soon | Coming soon |
| CharXiv w/o tools | 88.4% | Coming soon | Coming soon |
| CharXiv | 93.5% | 82.5% | Qwen3.8 Max |
| OmniDocBench 1.5 | 92.1% | Coming soon | Coming soon |
| OCRBench V2 | 74.2% | Coming soon | Coming soon |
| CC-OCR | 79.6% | Coming soon | Coming soon |
| RealWorldQA | 88.0% | Coming soon | Coming soon |
| ERQA | 77.8% | 71.3% | Qwen3.8 Max |
| SimpleVQA | 75.0% | Coming soon | Coming soon |
| PerceptionBench | 63.5% | Coming soon | Coming soon |
| Video-MME (with subtitle) | 90.4% | Coming soon | Coming soon |
| VideoMMMU | 88.7% | Coming soon | Coming soon |
| MMVU | 82.4% | Coming soon | Coming soon |
| MLVU (M-Avg) | 90.8% | Coming soon | Coming soon |
| LVBench | 81.8% | Coming soon | Coming soon |
| Video-MME | Coming soon | 89.0% | Coming soon |

### Reasoning

- Winner: Coming soon
- Qwen3.8 Max public-lane score: 86.5 (Unranked · 2 rankable rows)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.8 Max | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 92.9% | Coming soon | Coming soon |
| LongBench v2 | 66.3% | Coming soon | Coming soon |

### Knowledge

- Winner: Coming soon
- Qwen3.8 Max public-lane score: 68.8 (Supported · #17/183)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.8 Max | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 92.6% | Coming soon | Coming soon |
| GPQA-D | 92.6% | Coming soon | Coming soon |
| HLE | 43.6% | Coming soon | Coming soon |
| HLE w/o tools | 43.6% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 93.7% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 88.6% | Coming soon | Coming soon |
| SuperGPQA | Coming soon | 67.4% | Coming soon |

### Instruction Following

- Winner: Coming soon
- Qwen3.8 Max public-lane score: 90.7 (#18/123)
- Seed 2.1 Turbo public-lane score: Coming soon

| Benchmark | Qwen3.8 Max | Seed 2.1 Turbo | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 82.8% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Qwen3.8 Max or Seed 2.1 Turbo?

Qwen3.8 Max is ahead overall on BenchLM right now.

### How many benchmarks does Qwen3.8 Max cover on BenchLM?

Qwen3.8 Max currently has 60 sourced benchmark scores on BenchLM.

### How many benchmarks does Seed 2.1 Turbo cover on BenchLM?

Seed 2.1 Turbo currently has 11 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Qwen3.8 Max vs Qwen3.8 Max Preview](/compare/qwen3-8-max-vs-qwen3-8-max-preview)
- [Seed 2.1 Turbo vs Qwen3.8 Max Preview](/compare/qwen3-8-max-preview-vs-seed-2-1-turbo)
- [Qwen3.8 Max vs Seed 2.1 Pro](/compare/qwen3-8-max-vs-seed-2-1-pro)
- [Seed 2.1 Turbo vs Seed 2.1 Pro](/compare/seed-2-1-pro-vs-seed-2-1-turbo)

## Explore More

- [Qwen3.8 Max profile](/models/qwen3-8-max)
- [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)