Model
Fugu Ultra
Quality-first multi-agent model for hard research, analysis, and competitions
9 providersreleased closed weights
$5
best input /M · OpenRouter
$30
best output /M
1M
context window
1M
max output
Compare providers (sorted by listed input price)
| Provider | Input /M | Output /M | Cache read /M | Cache write /M | Context | Capabilities | Status | Updated |
|---|---|---|---|---|---|---|---|---|
| OpenRouter sakana/fugu-ultra | $5 | $30 | $0.5 | — | 1M | reasoningtoolsstructuredvision | Jun 15, 2026 | |
| LLM Gateway sakana/fugu-ultra | $5 | $30 | $0.5 | — | 1M | reasoningtoolsno structuredvision | Jun 15, 2026 | |
| LLMTR sakana/fugu-ultra | $5 | $30 | — | — | 1M | reasoningtoolsstructuredvision | Jun 15, 2026 | |
| Merge Gateway sakana/fugu-ultra | $5 | $30 | $0.5 | — | 1M | reasoningtoolsno structuredvision | Jun 15, 2026 | |
| Sakana AI fugu-ultra | $5 | $30 | $0.5 | — | 1M | reasoningtoolsstructuredvision | Jun 15, 2026 | |
| Vercel AI Gateway sakana/fugu-ultra | $5 | $30 | $0.5 | — | 1M | reasoningtoolsstructuredvision | Jun 15, 2026 | |
| Kilo Gateway sakana/fugu-ultra | $5 | $30 | $0.5 | — | 1M | reasoningtoolsstructuredvision | Jun 15, 2026 | |
| Pioneer sakana/fugu-ultra | $5 | $30 | $0.5 | $5 | 1M | reasoningtoolsstructuredvision | Jun 15, 2026 | |
| NanoGPT sakana/fugu-ultra | $5.25 | $31.50 | $0.525 | — | 1M | reasoningtoolsstructuredvision | Jun 15, 2026 |
Price badge
https://models.sutraworks.ai/badge/sakana/fugu-ultra.svgLive SVG, regenerated on every hourly sync — paste it into a README to always show the current cheapest listed price. Updates when prices change; no build step needed on your side.
Benchmarks
- SWE Bench Pro ↗report ↗73.7
- Terminal Bench 2.1 ↗report ↗82.1
- LiveCodeBench ↗report ↗93.2
- LiveCodeBench Pro ↗report ↗90.8
- Humanity’s Last Exam ↗report ↗50
- CharXiv Reasoningreport ↗86.6
- GPQA Diamond ↗report ↗95.5
- SciCodereport ↗58.7
- τ3 Bankingreport ↗20.6
- Long Context Reasoningreport ↗73.3
- MRCRv2report ↗93.6
- CTI-REALMreport ↗69.4
Prices are per million tokens (USD). “—” means the provider does not publicly list a price for this model. Data from models.dev; verify with the provider before purchasing.