Sakana Fugu (sometimes searched as "Fogu AI") is a multi-agent system delivered as a single OpenAI-compatible API. Instead of picking one frontier model, Fugu dynamically orchestrates a pool of specialists for each task.
Fugu vs Fugu Ultra
Fugu balances latency and quality — default for daily coding and chat. Fugu Ultra coordinates a deeper agent pool for Kaggle, paper reproduction, security audits, and patent research. Ultra pricing: $5/$30 per million tokens (higher above 272K context).
How it works
Built on ICLR 2026 papers TRINITY and Conductor. A learned coordinator assigns Thinker, Worker, and Verifier roles across models — discovering collaboration patterns humans wouldn't hand-design.
Benchmark results
Sakana reports Fugu Ultra matching or beating Claude Fable 5, Mythos Preview, GPT 5.5, and Gemini 3.1 Pro on SWE-Bench Pro, TerminalBench, LiveCodeBench, and GPQA-D — without single-vendor lock-in.
Getting started
Sign up at console.sakana.ai. Also on OpenRouter and Vercel AI Gateway. Point existing OpenAI SDK clients at the Fugu endpoint. Subscriptions from $20/mo (Standard) to $200/mo (Max). Not yet available in EU/EEA.
