# Sakana Fugu vs Seed 2.1 Pro

> Side-by-side benchmark comparison for Sakana Fugu and Seed 2.1 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/sakana-fugu-vs-seed-2-1-pro
- Last updated: September 10, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Sakana Fugu and Seed 2.1 Pro share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Sakana Fugu has the larger published context window at 1M.

## Model Snapshot

| Property | Sakana Fugu | Seed 2.1 Pro |
|----------|----------|----------|
| Creator | Sakana AI | ByteDance |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 11 | 11 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Seed 2.1 Pro public-lane score: Coming soon

| Benchmark | Sakana Fugu | Seed 2.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 80.2% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 71.0% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Seed 2.1 Pro public-lane score: Coming soon

| Benchmark | Sakana Fugu | Seed 2.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 59% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 80.2% | Coming soon | Coming soon |
| LiveCodeBench v6 | 92.9% | Coming soon | Coming soon |
| LiveCodeBench Pro | 87.8% | Coming soon | Coming soon |
| SciCode | 60.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 71.0% | Coming soon |
| NL2Repo | Coming soon | 47% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: 68.8 (Unranked · 1 rankable row)
- Seed 2.1 Pro public-lane score: Coming soon

| Benchmark | Sakana Fugu | Seed 2.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 85.1% | 85.4% | Seed 2.1 Pro |
| MathVision | Coming soon | 92.6% | Coming soon |
| MMMU-Pro | Coming soon | 81.6% | Coming soon |
| ZeroBench | Coming soon | 18.0% | Coming soon |
| BabyVision | Coming soon | 73.7% | Coming soon |
| ERQA | Coming soon | 72.0% | Coming soon |
| Video-MME | Coming soon | 89.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: 69.5 (Unranked · 1 rankable row)
- Seed 2.1 Pro public-lane score: Coming soon

| Benchmark | Sakana Fugu | Seed 2.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 86.6% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Seed 2.1 Pro public-lane score: Coming soon

| Benchmark | Sakana Fugu | Seed 2.1 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 95.5% | Coming soon | Coming soon |
| GPQA-D | 95.5% | Coming soon | Coming soon |
| HLE w/o tools | 47.2% | Coming soon | Coming soon |
| SuperGPQA | Coming soon | 70.8% | Coming soon |

## FAQ

### Is there enough evidence to pick between Sakana Fugu and Seed 2.1 Pro?

Not yet. The models share only 1 sourced benchmark row, 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

- [Sakana Fugu vs Sakana Fugu-Ultra](/compare/sakana-fugu-vs-sakana-fugu-ultra)
- [Seed 2.1 Pro vs Sakana Fugu-Ultra](/compare/sakana-fugu-ultra-vs-seed-2-1-pro)
- [Sakana Fugu vs Fugu Cyber](/compare/sakana-fugu-vs-sakana-fugu-cyber)
- [Seed 2.1 Pro vs Fugu Cyber](/compare/sakana-fugu-cyber-vs-seed-2-1-pro)

## Explore More

- [Sakana Fugu profile](/models/sakana-fugu)
- [Seed 2.1 Pro profile](/models/seed-2-1-pro)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)