# Qwen3.5 397B vs Sakana Fugu

> Side-by-side benchmark comparison for Qwen3.5 397B and Sakana Fugu across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/qwen3-5-397b-vs-sakana-fugu
- Last updated: September 27, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Sakana Fugu if you want the stronger benchmark profile. Qwen3.5 397B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Sakana Fugu leads overall 65 to 51.
- The clearest category separation is in reasoning, where the averages are 60.9 for Qwen3.5 397B and 70.6 for Sakana Fugu.
- The biggest single benchmark swing is LiveCodeBench v6 in Coding, with scores of 83.6% and 92.9%.
- Sakana Fugu is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Sakana Fugu also has the larger context window at 1M.

## Model Snapshot

| Property | Qwen3.5 397B | Sakana Fugu |
|----------|----------|----------|
| Creator | Alibaba | Sakana AI |
| Type | Open Weight | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 1M |
| Overall Score | null | null |
| Benchmarks Covered | 38 | 11 |
| Pricing (input/output) | $0.60 / $3.60 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Qwen3.5 397B public-lane score: Coming soon
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Qwen3.5 397B | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 52.5% | Coming soon | Coming soon |
| BrowseComp | 62% | Coming soon | Coming soon |
| Claw-Eval | 56.8% | Coming soon | Coming soon |
| QwenClawBench | 51.8% | Coming soon | Coming soon |
| τ³-bench results | 68.4% | Coming soon | Coming soon |
| VITA-Bench | 43.7% | Coming soon | Coming soon |
| DeepPlanning | 37.6% | Coming soon | Coming soon |
| Toolathlon | 36.3% | Coming soon | Coming soon |
| MCP Atlas | 46.1% | Coming soon | Coming soon |
| MCP-Tasks | 74.2% | Coming soon | Coming soon |
| WideResearch | 74.0% | Coming soon | Coming soon |
| Gert Labs | 46.76% | Coming soon | Coming soon |
| ResearchClawBench | 14.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.2% | Coming soon |

### Coding

- Winner: Not comparable
- Qwen3.5 397B public-lane score: Coming soon
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Qwen3.5 397B | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 76.2% | Coming soon | Coming soon |
| LiveCodeBench v6 | 83.6% | 92.9% | Sakana Fugu |
| SWE-bench Pro | 50.9% | 59% | Sakana Fugu |
| Terminal-Bench 2.1 | Coming soon | 80.2% | Coming soon |
| LiveCodeBench Pro | Coming soon | 87.8% | Coming soon |
| SciCode | Coming soon | 60.1% | Coming soon |

### Reasoning

- Winner: Not comparable
- Qwen3.5 397B public-lane score: 60.9 (Unranked · 2 rankable rows)
- Sakana Fugu public-lane score: 70.6 (Unranked · 1 rankable row)

| Benchmark | Qwen3.5 397B | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | 63.2% | Coming soon | Coming soon |
| AI-Needle | 68.7% | Coming soon | Coming soon |
| MRCRv2 | Coming soon | 86.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Qwen3.5 397B public-lane score: 62.9 (#28/50)
- Sakana Fugu public-lane score: 68.6 (Unranked · 1 rankable row)

| Benchmark | Qwen3.5 397B | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 79% | Coming soon | Coming soon |
| MathVision | 88.6% | Coming soon | Coming soon |
| CharXiv | 80.8% | 85.1% | Sakana Fugu |
| VideoMMMU | 84.7% | Coming soon | Coming soon |
| ScreenSpot Pro | 65.6% | Coming soon | Coming soon |
| V* | 95.8% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Qwen3.5 397B public-lane score: Coming soon
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Qwen3.5 397B | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 88.4% | 95.5% | Sakana Fugu |
| SuperGPQA | 70.4% | Coming soon | Coming soon |
| MMLU-Pro | 87.8% | Coming soon | Coming soon |
| MMLU-Redux | 94.9% | Coming soon | Coming soon |
| C-Eval | 93% | Coming soon | Coming soon |
| HLE | 28.7% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 95.5% | Coming soon |
| HLE w/o tools | Coming soon | 47.2% | Coming soon |

### Multilingual

- Winner: Not comparable
- Qwen3.5 397B public-lane score: 69.7 (#5/12)
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Qwen3.5 397B | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| MMLU-ProX | 84.7% | Coming soon | Coming soon |
| NOVA-63 | 59.1% | Coming soon | Coming soon |

### Instruction Following

- Winner: Not comparable
- Qwen3.5 397B public-lane score: 0 (#124/124)
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Qwen3.5 397B | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| IFEval | 92.6% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Qwen3.5 397B public-lane score: 73.5 (Unranked · 5 rankable rows)
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Qwen3.5 397B | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 93.3% | Coming soon | Coming soon |
| HMMT Feb 2025 | 94.8% | Coming soon | Coming soon |
| HMMT Nov 2025 | 92.7% | Coming soon | Coming soon |
| HMMT Feb 2026 | 87.9% | Coming soon | Coming soon |
| MMAnswerBench | 80.9% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Qwen3.5 397B or Sakana Fugu?

Sakana Fugu is ahead overall on BenchLM right now.

### Where is the biggest gap between Qwen3.5 397B and Sakana Fugu?

The widest category gap is in reasoning, where the averages are 60.9 for Qwen3.5 397B and 70.6 for Sakana Fugu.

### How many benchmarks does Qwen3.5 397B cover on BenchLM?

Qwen3.5 397B currently has 38 sourced benchmark scores on BenchLM.

### How many benchmarks does Sakana Fugu cover on BenchLM?

Sakana Fugu currently has 11 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Qwen3.5 397B vs Qwen3.5 397B (Reasoning)](/compare/qwen3-5-397b-vs-qwen3-5-397b-reasoning)
- [Sakana Fugu vs Qwen3.5 397B (Reasoning)](/compare/qwen3-5-397b-reasoning-vs-sakana-fugu)
- [Qwen3.5 397B vs Sakana Fugu-Ultra](/compare/qwen3-5-397b-vs-sakana-fugu-ultra)
- [Sakana Fugu vs Sakana Fugu-Ultra](/compare/sakana-fugu-vs-sakana-fugu-ultra)

## Explore More

- [Qwen3.5 397B profile](/models/qwen3-5-397b)
- [Sakana Fugu profile](/models/sakana-fugu)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)