# Muse Spark vs Sakana Fugu-Ultra v1.1

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

- Canonical page: https://benchlm.ai/compare/muse-spark-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 and Sakana Fugu-Ultra v1.1.

## Summary

- Muse Spark 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 | Sakana Fugu-Ultra v1.1 |
|----------|----------|----------|
| Creator | Meta | Sakana AI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 1M |
| Independent public score (not head-to-head) | 68.39 | null |
| Benchmarks Covered | 24 | 0 |
| Pricing (input/output) | N/A | $5.00 / $30.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Muse Spark public-lane score: 58.8 (Supported · #31/151)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 59% | Coming soon | Coming soon |
| τ²-bench results | 91.5% | Coming soon | Coming soon |
| DeepSearchQA | 74.8% | Coming soon | Coming soon |
| CyberGym | 43.5% | Coming soon | Coming soon |
| Claw-Eval | 63.8% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Muse Spark public-lane score: 59.2 (Supported · #28/183)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 77.4% | Coming soon | Coming soon |
| SWE-bench Pro | 52.4% | Coming soon | Coming soon |
| LiveCodeBench Pro | 80.0% | Coming soon | Coming soon |
| Vibe Code Bench | 19.67% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Muse Spark public-lane score: 77.5 (#14/48)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | 86.4% | Coming soon | Coming soon |
| MMMU-Pro | 80.4% | Coming soon | Coming soon |
| ERQA | 64.7% | Coming soon | Coming soon |
| SimpleVQA | 71.3% | Coming soon | Coming soon |
| ScreenSpot Pro | 84.1% | Coming soon | Coming soon |
| ZeroBench | 33.0% | Coming soon | Coming soon |
| MedXpertQA (MM) | 78.4% | Coming soon | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Muse Spark public-lane score: 45.9 (Unranked · 3 rankable rows)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 42.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Muse Spark public-lane score: 65.7 (Supported · #23/181)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 89.5% | Coming soon | Coming soon |
| HLE | 50.4% | Coming soon | Coming soon |
| HLE w/o tools | 42.8% | Coming soon | Coming soon |
| HealthBench Hard | 42.8% | Coming soon | Coming soon |
| MedXpertQA (Text) | 52.6% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Muse Spark public-lane score: 92.9 (#8/120)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Muse Spark public-lane score: 55.3 (Unranked · 2 rankable rows)
- Sakana Fugu-Ultra v1.1 public-lane score: Coming soon

| Benchmark | Muse Spark | Sakana Fugu-Ultra v1.1 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 39.000% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 14.600% | Coming soon | Coming soon |

## FAQ

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

## Explore More

- [Muse Spark profile](/models/muse-spark)
- [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)