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Fugu Ultra

Also accepted:sakana/fugu-ultra-v2
sakana
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Fugu Ultra is Sakana AI's flagship orchestration model. Rather than answering directly, it coordinates a deep pool of expert agents and frontier models behind one OpenAI-compatible API, decomposing a task, dispatching sub-problems to the best available model, and synthesizing the result. It supports OpenAI-compatible Chat Completions and Responses APIs, including built-in tools such as web_search, and targets long-horizon, agentic, and research-grade workloads with a large context window.

Providers
Capabilities
Sakana AI
sakana-byok
$0
$0
Unavailable
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API & code
Uptime & Health
No uptime data yet

These providers haven't been health-probed for this model yet. The router still routes around upstreams that fail live requests — uptime fills in once probe history accrues.

Share cards
Fugu Ultra share card
Fugu Ultra
Sakana AI upstream share card
Sakana AI upstream
Credits
Use your own key

Run Fugu Ultra on your own key — your requests are billed by the provider. Pool callers pay AnyRouter credits.

No BYOK keys configured for this model yet.

Share a key with the pool to earn credits for every request it serves, covering your plan cost.

Text generation
Context length272,000 tokens
Max output217,600 tokens
ArchitectureTransformer
Categorytext
ReleasedJun 15, 2026
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