Sakana Fugu Ultra now available on AI Gateway

Sakana Fugu Ultra from Sakana AI is now available on AI Gateway.

Fugu Ultra is built on a pool of publicly accessible frontier models, rather than running as a single model. It coordinates several models, routing work to 1-3 agents depending on the problem and combining their results into a single answer.

Based on reasoning and scientific benchmarks, Fugu Ultra has capabilities similar to those of Claude Mythos Preview and Fable 5.

To use Fugu Ultra, set model to sakana/fugu-ultra in AI SDK:

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import { streamText } from 'ai';
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const result = streamText({
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  model: 'sakana/fugu-ultra',
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  prompt: 'Review this pull request and flag correctness bugs.',
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});

AI Gateway provides a unified API for calling models, tracking usage and cost, and configuring retries, failover, and performance optimizations for higher-than-provider uptime. It includes built-in custom reporting, Zero Data Retention support, budgets for API keys, and more.

AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on Bring Your Own Key (BYOK) requests.

Try Sakana Fugu Ultra in the model playground.