# Muse Spark 1.1 vs Sakana Fugu-Ultra v1.1

> Side-by-side benchmark comparison for Muse Spark 1.1 and Sakana Fugu-Ultra v1.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/muse-spark-1-1-vs-sakana-fugu-ultra-v1-1
- Last updated: September 4, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Muse Spark 1.1 and Sakana Fugu-Ultra v1.1.

## Summary

- Muse Spark 1.1 and Sakana Fugu-Ultra v1.1 do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Muse Spark 1.1 | Sakana Fugu-Ultra v1.1 |
|----------|----------|----------|
| Creator | Meta | Sakana AI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Independent public score (not head-to-head) | 71.78 | null |
| Benchmarks Covered | 26 | 0 |
| Pricing (input/output) | N/A | $5.00 / $30.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Muse Spark 1.1 public-lane score: 62.7 (Supported · #18/151)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark 1.1 | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 80% | Coming soon | Coming soon |
| MCP Atlas | 88.1% | Coming soon | Coming soon |
| Toolathlon | 75.6% | Coming soon | Coming soon |
| OSWorld-Verified | 80.8% | Coming soon | Coming soon |
| WebArena-Verified | 69% | Coming soon | Coming soon |
| DeepSearchQA | 84.9% | Coming soon | Coming soon |
| CyberGym | 59.0% | Coming soon | Coming soon |
| Finance Agent v2 | 57.2% | Coming soon | Coming soon |
| deepSwe | 53.3% | Coming soon | Coming soon |
| OSWorld 2.0 | 14.2% | Coming soon | Coming soon |
| JobBench | 54.7% | Coming soon | Coming soon |
| Cybench | 92.9% | Coming soon | Coming soon |
| ExploitGym | 0.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 69.3% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Muse Spark 1.1 public-lane score: 59.9 (Supported · #25/183)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark 1.1 | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 80.0% | Coming soon | Coming soon |
| SWE-bench Pro | 61.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.9% | Coming soon | Coming soon |
| SWE-bench (Vals) | 82.0% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Muse Spark 1.1 public-lane score: 77.5 (Unranked · 2 rankable rows)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark 1.1 | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 88.4% | Coming soon | Coming soon |
| BabyVision | 76.3% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Muse Spark 1.1 public-lane score: 78.5 (#4/22)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark 1.1 | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| MRCR 1M | 54.1% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Muse Spark 1.1 public-lane score: 71.5 (Supported · #11/181)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark 1.1 | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| HLE | 62.1% | Coming soon | Coming soon |
| HLE w/o tools | 52.2% | Coming soon | Coming soon |
| HealthBench Professional | 59.3% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 91.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 88.7% | Coming soon | Coming soon |

## FAQ

### Can I compare Muse Spark 1.1 and Sakana Fugu-Ultra v1.1 on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Muse Spark 1.1 vs Muse Spark 1.2](/compare/muse-spark-1-1-vs-muse-spark-1-2)
- [Sakana Fugu-Ultra v1.1 vs Muse Spark 1.2](/compare/muse-spark-1-2-vs-sakana-fugu-ultra-v1-1)
- [Muse Spark 1.1 vs Muse Spark](/compare/muse-spark-vs-muse-spark-1-1)
- [Sakana Fugu-Ultra v1.1 vs Muse Spark](/compare/muse-spark-vs-sakana-fugu-ultra-v1-1)

## Explore More

- [Muse Spark 1.1 profile](/models/muse-spark-1-1)
- [Sakana Fugu-Ultra v1.1 profile](/models/sakana-fugu-ultra-v1-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)