Sakana AI

Sakana Fugu Ultra

proprietaryReleased Jun 2026

The higher-quality tier of Sakana AI's Fugu multi-agent orchestration system, tuned for the hardest coding, reasoning, science, and agentic tasks. Coordinates a swappable pool of frontier LLMs through one OpenAI-compatible endpoint, delegating sub-tasks, verifying intermediate work, and synthesizing a single answer. Sakana reports strong vendor benchmarks including 93.2 on LiveCodeBench, 73.7 on SWE-Bench Pro, and 82.1 on TerminalBench.

Capabilities

chatcompletionfunction-callingcode-generationreasoning

Modalities

textcode

Context Window

256K tokens

Providers

available

Available from 1 provider

Cheapest

Sakana AI

$35.00/1M tokens

Sakana AI

Providers (1)

Sorted by total cost (input + output per 1M tokens). Click a row to view provider details.

Provider	Pricing (per 1M)	Rate Limits	Regions	Health	Latency
Sakana AI	In: $5.00Out: $30.00	60 RPM / 120K TPM	ap-northeast-1global	Healthy	0ms

Quick Start

Use this model via Sakana AI with an OpenAI-compatible SDK.

import OpenAI from "openai";

const client = new OpenAI({
  baseURL: "https://api.sakana.com/v1",
  apiKey: process.env.SAKANA_API_KEY,
});

const response = await client.chat.completions.create({
  model: "fugu-ultra",
  messages: [
    { role: "user", content: "Hello!" }
  ],
});

console.log(response.choices[0].message.content);

Using Sakana AI API • OpenAI-compatible SDK