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 to in :modelsakana/fugu-ultraAI SDK
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 , , , and more.custom reportingZero Data Retention supportbudgets for API keys
AI Gateway reflects provider pricing with no markup and does not charge a platform fee on inference, including on (BYOK) requests.Bring Your Own Key
Try Sakana Fugu Ultra in the .model playground