# Sakana Fugu-Ultra Benchmark Scores & Performance

> Sakana Fugu-Ultra by Sakana AI has 11 source-displayable benchmark rows but no public overall score. It remains unranked.

Canonical page: https://benchlm.ai/models/sakana-fugu-ultra

Last updated: September 28, 2026

## Model Details

| Property | Value |
|----------|-------|
| Creator | Sakana AI |
| Source Type | Proprietary |
| Reasoning Type | Reasoning |
| Context Window | 1M |
| Overall Score | Coming soon |
| Overall Rank | Unranked |

## Family & Coverage

- Family: Sakana Fugu
- Variant: ultra (Ultra)
- Benchmarks covered: 11 of 486
- Sibling models: [Sakana Fugu](/models/sakana-fugu), [Fugu Cyber](/models/sakana-fugu-cyber), [Sakana Fugu-Ultra v1.1](/models/sakana-fugu-ultra-v1-1)
- Coverage note: BenchLM currently has partial benchmark coverage for this model, so the overall score is conservative.

## Agentic Benchmarks

| Benchmark | Score |
|-----------|-------|
| [Terminal-Bench 2.1](/benchmarks/terminalbench21) | 82.1% |

## Coding Benchmarks

| Benchmark | Score |
|-----------|-------|
| [SWE-bench Pro](/benchmarks/swe-bench-pro) | 73.7% |
| [Terminal-Bench 2.1](/benchmarks/terminalbench21) | 82.1% |
| [LiveCodeBench v6](/benchmarks/livecodebench-v6) | 93.2% |
| [LiveCodeBench Pro](/benchmarks/livecodebench-pro) | 90.8% |
| [SciCode](/benchmarks/scicode) | 58.7% |

## Multimodal & Grounded Benchmarks

| Benchmark | Score |
|-----------|-------|
| [CharXiv](/benchmarks/charxiv) | 86.6% |

## Reasoning Benchmarks

| Benchmark | Score |
|-----------|-------|
| [MRCRv2](/benchmarks/mrcrv2) | 93.6% |

## Knowledge Benchmarks

| Benchmark | Score |
|-----------|-------|
| [GPQA](/benchmarks/gpqa) | 95.5% |
| [GPQA-D](/benchmarks/gpqa-diamond) | 95.5% |
| [HLE w/o tools](/benchmarks/hlenotools) | 50% |

## Other Sakana AI Models

- [Sakana Fugu](/models/sakana-fugu) - Score: not computed
- [Fugu Cyber](/models/sakana-fugu-cyber) - Score: not computed
- [Sakana Namazu](/models/sakana-namazu) - Score: not computed
- [Sakana Fugu-Ultra v1.1](/models/sakana-fugu-ultra-v1-1) - Score: not computed