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by Sakana

Sakana: Fugu Ultra.

multimodal closed 1M ctx
Cheapest input
$5.0/M
on OpenRouter
Cheapest output
$30.0/M
on OpenRouter
Hosted equiv.
~$10.8/hr
@ 100 tok/s on OpenRouter

Fugu Ultra is the higher-performance model in Sakana AI's Fugu family. Rather than a single monolithic model, Fugu is a learned multi-agent orchestration system: a language model trained to route...

Hosted API only

No self-host path — closed weights.

Sakana: Fugu Ultra's weights aren't published. Use it via the access providers below.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $5.0 $30.0 Launch ↗
FAQ

Frequently asked.

How do I run Sakana: Fugu Ultra?
Sakana: Fugu Ultra is a closed-source API model. The cheapest way to access it is through the API providers listed on this page (direct API, aggregators, and hosted chat UIs).
Where can I access Sakana: Fugu Ultra?
Sakana: Fugu Ultra is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run Sakana: Fugu Ultra?
API pricing starts at $5.0/M input tokens and $30.0/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is Sakana: Fugu Ultra open-source or proprietary?
Sakana: Fugu Ultra is a proprietary model from Sakana. Access is API-only — there are no public weights to download.