# Gemini 3.1 Pro vs Sakana Fugu-Ultra

> Side-by-side benchmark comparison for Gemini 3.1 Pro and Sakana Fugu-Ultra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-1-pro-vs-sakana-fugu-ultra
- Last updated: September 28, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Sakana Fugu-Ultra if you want the stronger benchmark profile. Gemini 3.1 Pro only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Sakana Fugu-Ultra leads overall 74 to 64.46.
- The clearest category separation is in reasoning, where the averages are 54.5 for Gemini 3.1 Pro and 79.1 for Sakana Fugu-Ultra.
- The biggest single benchmark swing is LiveCodeBench Pro in Coding, with scores of 82.9% and 90.8%.
- Sakana Fugu-Ultra is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Gemini 3.1 Pro | Sakana Fugu-Ultra |
|----------|----------|----------|
| Creator | Google | Sakana AI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 64.46 | null |
| Benchmarks Covered | 28 | 11 |
| Pricing (input/output) | $2.00 / $12.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 40.3 (Supported · #55/117)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Gemini 3.1 Pro | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| Claw-Eval | 57.8% | Coming soon | Coming soon |
| DeepSearchQA | 69.7% | Coming soon | Coming soon |
| τ²-bench results | 95.6% | Coming soon | Coming soon |
| Gert Labs | 56.87% | Coming soon | Coming soon |
| ResearchClawBench | 13.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 70.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 82.1% | Coming soon |

### Coding

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 42.3 (Supported · #57/142)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Gemini 3.1 Pro | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench Pro | 82.9% | 90.8% | Sakana Fugu-Ultra |
| React Native Evals | 78.9% | Coming soon | Coming soon |
| Vibe Code Bench | 32.03% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 88.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 78.8% | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 73.7% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 82.1% | Coming soon |
| LiveCodeBench v6 | Coming soon | 93.2% | Coming soon |
| SciCode | Coming soon | 58.7% | Coming soon |

### Reasoning

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 54.5 (Unranked · 2 rankable rows)
- Sakana Fugu-Ultra public-lane score: 79.1 (Unranked · 1 rankable row)

| Benchmark | Gemini 3.1 Pro | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 77.1% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.4% | Coming soon | Coming soon |
| MRCRv2 | Coming soon | 93.6% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 80.1 (#13/50)
- Sakana Fugu-Ultra public-lane score: 73.6 (Unranked · 1 rankable row)

| Benchmark | Gemini 3.1 Pro | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 83.9% | Coming soon | Coming soon |
| CharXiv | 80.2% | 86.6% | Sakana Fugu-Ultra |
| ERQA | 69.4% | Coming soon | Coming soon |
| SimpleVQA | 72.4% | Coming soon | Coming soon |
| ScreenSpot Pro | 84.4% | Coming soon | Coming soon |
| ZeroBench | 29.0% | Coming soon | Coming soon |
| MedXpertQA (MM) | 81.3% | Coming soon | Coming soon |

### Knowledge

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 66.6 (Supported · #21/168)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Gemini 3.1 Pro | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 94.3% | 95.5% | Sakana Fugu-Ultra |
| HLE w/o tools | 45.4% | 50% | Sakana Fugu-Ultra |
| HealthBench Hard | 20.6% | Coming soon | Coming soon |
| MedXpertQA (Text) | 71.5% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 95.5% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 91.0% | Coming soon | Coming soon |
| GPQA | Coming soon | 95.5% | Coming soon |

### Mathematics

- Winner: Not comparable
- Gemini 3.1 Pro public-lane score: 54.2 (Unranked · 2 rankable rows)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | Gemini 3.1 Pro | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 36.900% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 16.700% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Gemini 3.1 Pro or Sakana Fugu-Ultra?

Sakana Fugu-Ultra is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.1 Pro and Sakana Fugu-Ultra?

The widest category gap is in reasoning, where the averages are 54.5 for Gemini 3.1 Pro and 79.1 for Sakana Fugu-Ultra.

### How many benchmarks does Gemini 3.1 Pro cover on BenchLM?

Gemini 3.1 Pro currently has 28 sourced benchmark scores on BenchLM.

### How many benchmarks does Sakana Fugu-Ultra cover on BenchLM?

Sakana Fugu-Ultra currently has 11 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.1 Pro vs Sakana Fugu](/compare/gemini-3-1-pro-vs-sakana-fugu)
- [Sakana Fugu-Ultra vs Sakana Fugu](/compare/sakana-fugu-vs-sakana-fugu-ultra)
- [Gemini 3.1 Pro vs Fugu Cyber](/compare/gemini-3-1-pro-vs-sakana-fugu-cyber)
- [Sakana Fugu-Ultra vs Fugu Cyber](/compare/sakana-fugu-cyber-vs-sakana-fugu-ultra)

## Explore More

- [Gemini 3.1 Pro profile](/models/gemini-3-1-pro)
- [Sakana Fugu-Ultra profile](/models/sakana-fugu-ultra)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)