# Sakana Fugu vs Solar Open 2

> Side-by-side benchmark comparison for Sakana Fugu and Solar Open 2 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

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

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Sakana Fugu and Solar Open 2 share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Solar Open 2 has the lower published output-token price.

## Model Snapshot

| Property | Sakana Fugu | Solar Open 2 |
|----------|----------|----------|
| Creator | Sakana AI | Upstage |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | null | null |
| Benchmarks Covered | 11 | 11 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Sakana Fugu | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 80.2% | Coming soon | Coming soon |
| terminalBenchHard | Coming soon | 28.3% | Coming soon |
| APEX-Agents | Coming soon | 16.6% | Coming soon |
| MCP Atlas | Coming soon | 58.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Sakana Fugu | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 59% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 80.2% | Coming soon | Coming soon |
| LiveCodeBench v6 | 92.9% | 92.4% | Sakana Fugu |
| LiveCodeBench Pro | 87.8% | Coming soon | Coming soon |
| SciCode | 60.1% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 70.4% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: 68.8 (Unranked · 1 rankable row)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Sakana Fugu | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 85.1% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: 69.5 (Unranked · 1 rankable row)
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Sakana Fugu | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 86.6% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Sakana Fugu | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 95.5% | Coming soon | Coming soon |
| GPQA-D | 95.5% | 86.3% | Sakana Fugu |
| HLE w/o tools | 47.2% | 28.8% | Sakana Fugu |
| MMLU-Pro | Coming soon | 86.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Sakana Fugu | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | Coming soon | 80% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Solar Open 2 public-lane score: Coming soon

| Benchmark | Sakana Fugu | Solar Open 2 | Winner |
|-----------|-----------|-----------|--------|
| HMMT Feb 2026 | Coming soon | 93.9% | Coming soon |
| AIME26 | Coming soon | 95.7% | Coming soon |

## FAQ

### Is there enough evidence to pick between Sakana Fugu and Solar Open 2?

Not yet. The models share only 3 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

- [Sakana Fugu vs Sakana Fugu-Ultra](/compare/sakana-fugu-vs-sakana-fugu-ultra)
- [Solar Open 2 vs Sakana Fugu-Ultra](/compare/sakana-fugu-ultra-vs-solar-open-2)
- [Sakana Fugu vs Fugu Cyber](/compare/sakana-fugu-vs-sakana-fugu-cyber)
- [Solar Open 2 vs Fugu Cyber](/compare/sakana-fugu-cyber-vs-solar-open-2)

## Explore More

- [Sakana Fugu profile](/models/sakana-fugu)
- [Solar Open 2 profile](/models/solar-open-2)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)