# Sakana Fugu vs Step 3.7 Flash

> Side-by-side benchmark comparison for Sakana Fugu and Step 3.7 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/sakana-fugu-vs-step-3-7-flash
- Last updated: September 27, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Evidence is too thin for a benchmark verdict: Sakana Fugu and Step 3.7 Flash 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.
- Sakana Fugu has the lower published output-token price.
- Sakana Fugu has the larger published context window at 1M.

## Model Snapshot

| Property | Sakana Fugu | Step 3.7 Flash |
|----------|----------|----------|
| Creator | Sakana AI | StepFun |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 256K |
| Independent public score (not head-to-head) | null | 41.41 |
| Benchmarks Covered | 11 | 11 |
| Pricing (input/output) | Pricing unavailable / Pricing unavailable | $0.20 / $1.15 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 35.2 (Estimated · #56/105)

| Benchmark | Sakana Fugu | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 80.2% | 59.5% | Sakana Fugu |
| BrowseComp | Coming soon | 75.8% | Coming soon |
| DeepSearchQA | Coming soon | 92.8% | Coming soon |
| Toolathlon | Coming soon | 49.5% | Coming soon |
| Claw-Eval | Coming soon | 67.1% | Coming soon |
| HLE w/ tools | Coming soon | 47.2% | Coming soon |
| Gert Labs | Coming soon | 51.57% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 32.4 (Estimated · #81/135)

| Benchmark | Sakana Fugu | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 59% | 56.3% | Sakana Fugu |
| Terminal-Bench 2.1 | 80.2% | 59.5% | Sakana Fugu |
| LiveCodeBench v6 | 92.9% | Coming soon | Coming soon |
| LiveCodeBench Pro | 87.8% | Coming soon | Coming soon |
| SciCode | 60.1% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: 70.6 (Unranked · 1 rankable row)
- Step 3.7 Flash public-lane score: 72.7 (Unranked · 2 rankable rows)

| Benchmark | Sakana Fugu | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 86.6% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: 68.6 (Unranked · 1 rankable row)
- Step 3.7 Flash public-lane score: 71 (Unranked · 3 rankable rows)

| Benchmark | Sakana Fugu | Step 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 85.1% | Coming soon | Coming soon |
| SimpleVQA | Coming soon | 79.2% | Coming soon |
| V* | Coming soon | 95.3% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 43.1 (Estimated · #78/158)

| Benchmark | Sakana Fugu | Step 3.7 Flash | 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 |

### Instruction Following

- Winner: Insufficient shared evidence
- Sakana Fugu public-lane score: Coming soon
- Step 3.7 Flash public-lane score: 80.6 (#53/124)

## FAQ

### Is there enough evidence to pick between Sakana Fugu and Step 3.7 Flash?

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)
- [Step 3.7 Flash vs Sakana Fugu-Ultra](/compare/sakana-fugu-ultra-vs-step-3-7-flash)
- [Sakana Fugu vs Fugu Cyber](/compare/sakana-fugu-vs-sakana-fugu-cyber)
- [Step 3.7 Flash vs Fugu Cyber](/compare/sakana-fugu-cyber-vs-step-3-7-flash)

## Explore More

- [Sakana Fugu profile](/models/sakana-fugu)
- [Step 3.7 Flash profile](/models/step-3-7-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)