# Sakana Fugu Ultra now available on AI Gateway > Source: > Published: 2026-06-22 00:00:00+00:00 Sakana Fugu Ultra from Sakana AI is now available on [AI Gateway](https://vercel.com/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](https://ai-sdk.dev/): 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](https://vercel.com/changelog/custom-reporting-ai-gateway), [Zero Data Retention support](https://vercel.com/blog/zdr-on-ai-gateway), [budgets for API keys](https://vercel.com/docs/ai-gateway/authentication-and-byok/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](https://vercel.com/docs/ai-gateway/authentication-and-byok/byok) (BYOK) requests. Try Sakana Fugu Ultra in the [model playground](https://vercel.com/ai-gateway/models/fugu-ultra).