# GPT-4o vs Sakana Fugu-Ultra

> Side-by-side benchmark comparison for GPT-4o and Sakana Fugu-Ultra across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gpt-4o-vs-sakana-fugu-ultra
- Last updated: September 28, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for GPT-4o and Sakana Fugu-Ultra.

## Summary

- GPT-4o and Sakana Fugu-Ultra 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 | GPT-4o | Sakana Fugu-Ultra |
|----------|----------|----------|
| Creator | OpenAI | Sakana AI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 128K | 1M |
| Independent public score (not head-to-head) | 30.8 | null |
| Benchmarks Covered | 1 | 11 |
| Pricing (input/output) | $2.50 / $10.00 | Pricing unavailable / Pricing unavailable |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- GPT-4o public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | GPT-4o | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | Coming soon | 82.1% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- GPT-4o public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | GPT-4o | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| 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 |
| LiveCodeBench Pro | Coming soon | 90.8% | Coming soon |
| SciCode | Coming soon | 58.7% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- GPT-4o public-lane score: 56.1 (Unranked · 2 rankable rows)
- Sakana Fugu-Ultra public-lane score: 79.1 (Unranked · 1 rankable row)

| Benchmark | GPT-4o | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | Coming soon | 93.6% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- GPT-4o public-lane score: Coming soon
- Sakana Fugu-Ultra public-lane score: 73.6 (Unranked · 1 rankable row)

| Benchmark | GPT-4o | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 86.6% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- GPT-4o public-lane score: 31.7 (Estimated · #132/168)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | GPT-4o | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 95.5% | Coming soon |
| GPQA-D | Coming soon | 95.5% | Coming soon |
| HLE w/o tools | Coming soon | 50% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- GPT-4o public-lane score: 37.6 (#106/124)
- Sakana Fugu-Ultra public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- GPT-4o public-lane score: 25.1 (Unranked · 1 rankable row)
- Sakana Fugu-Ultra public-lane score: Coming soon

| Benchmark | GPT-4o | Sakana Fugu-Ultra | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 0.345% | Coming soon | Coming soon |

## FAQ

### Can I compare GPT-4o and Sakana Fugu-Ultra 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

- [GPT-4o vs GPT-4o mini](/compare/gpt-4o-vs-gpt-4o-mini)
- [Sakana Fugu-Ultra vs GPT-4o mini](/compare/gpt-4o-mini-vs-sakana-fugu-ultra)
- [GPT-4o vs Sakana Fugu](/compare/gpt-4o-vs-sakana-fugu)
- [Sakana Fugu-Ultra vs Sakana Fugu](/compare/sakana-fugu-vs-sakana-fugu-ultra)

## Explore More

- [GPT-4o profile](/models/gpt-4o)
- [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)