# Claude Haiku 5.5 vs Sakana Fugu

> Side-by-side benchmark comparison for Claude Haiku 5.5 and Sakana Fugu across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-haiku-5-5-vs-sakana-fugu
- Last updated: October 7, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Haiku 5.5 and Sakana Fugu 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 lower published output-token price.

## Model Snapshot

| Property | Claude Haiku 5.5 | Sakana Fugu |
|----------|----------|----------|
| Creator | Anthropic | Sakana AI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 66.32 | null |
| Benchmarks Covered | 5 | 11 |
| Pricing (input/output) | $0.10 / $0.50 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 62.1 (Supported · #18/122)
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Claude Haiku 5.5 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 4.0 | 39.20% | Coming soon | Coming soon |
| HLE w/ tools | 57.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 60.9 (Supported · #20/146)
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Claude Haiku 5.5 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| FrontierCode 1.1 Main | 46.4% | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 59% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 80.2% | Coming soon |
| LiveCodeBench v6 | Coming soon | 92.9% | Coming soon |
| LiveCodeBench Pro | Coming soon | 87.8% | Coming soon |
| SciCode | Coming soon | 60.1% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: 79.2 (Unranked · 2 rankable rows)
- Sakana Fugu public-lane score: 70.7 (Unranked · 1 rankable row)

| Benchmark | Claude Haiku 5.5 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | Coming soon | 86.6% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- Sakana Fugu public-lane score: 69.6 (Unranked · 1 rankable row)

| Benchmark | Claude Haiku 5.5 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| Chartography (no tools) | 46.4% | Coming soon | Coming soon |
| CharXiv | Coming soon | 85.1% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude Haiku 5.5 public-lane score: Coming soon
- Sakana Fugu public-lane score: Coming soon

| Benchmark | Claude Haiku 5.5 | Sakana Fugu | Winner |
|-----------|-----------|-----------|--------|
| HLE w/o tools | 45.9% | 47.2% | Sakana Fugu |
| GPQA | Coming soon | 95.5% | Coming soon |
| GPQA-D | Coming soon | 95.5% | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Haiku 5.5 and Sakana Fugu?

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

- [Claude Haiku 5.5 vs Sakana Fugu-Ultra](/compare/claude-haiku-5-5-vs-sakana-fugu-ultra)
- [Sakana Fugu vs Sakana Fugu-Ultra](/compare/sakana-fugu-vs-sakana-fugu-ultra)
- [Claude Haiku 5.5 vs Fugu Cyber](/compare/claude-haiku-5-5-vs-sakana-fugu-cyber)
- [Sakana Fugu vs Fugu Cyber](/compare/sakana-fugu-vs-sakana-fugu-cyber)

## Explore More

- [Claude Haiku 5.5 profile](/models/claude-haiku-5-5)
- [Sakana Fugu profile](/models/sakana-fugu)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)