[Sakana AI](/ai-gateway/models/labs/sakana)

# Fugu Ultra

Fugu Ultra is Sakana AI's quality-maximizing multi-agent system released June 21, 2026. Behind a single model API, Fugu Ultra coordinates a pool of expert agents to solve hard, multi-step problems. Available through AI Gateway with unified billing, observability, and provider routing. Your use is subject to Sakana AI's [Terms](https://console.sakana.ai/terms-of-service) & [Privacy](https://console.sakana.ai/privacy-policy) Policies.

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[Use with AI Gateway](https://vercel.com/d?to=%2F%5Bteam%5D%2F%7E%2Fai%3Futm_source%3Dgateway-model-page%26utm_campaign%3Dai-gateway-models&title=Get+Started+with+Vercel+AI+Gateway) [View docs](https://vercel.com/docs/ai-gateway)

AI SDKChat CompletionsMessagesResponses

```
1import { streamText } from 'ai'
2

3const result = streamText({
4  model: 'sakana/fugu-ultra',
5  prompt: 'Why is the sky blue?'
6})
```

[Read docs](https://vercel.com/docs/ai-gateway/sdks-and-apis/ai-sdk)

[Overview](/ai-gateway/models/fugu-ultra) [API](/ai-gateway/models/fugu-ultra/api) [About](/ai-gateway/models/fugu-ultra/about) [Providers](/ai-gateway/models/fugu-ultra/providers) [Latency](/ai-gateway/models/fugu-ultra/latency) [Uptime](/ai-gateway/models/fugu-ultra/uptime) [Status](/ai-gateway/models/fugu-ultra/status) [Similar](/ai-gateway/models/fugu-ultra/similar) [FAQ](/ai-gateway/models/fugu-ultra/faq)

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