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 :

import { streamText } from 'ai' ;

const result = streamText ( {

model : 'sakana/fugu-ultra' ,

prompt : 'Review this pull request and flag correctness bugs.' ,

} ) ;

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.…