Fugu Ultra

1.95
Sakana AI’s high-performance multi-agent AI system that coordinates multiple specialized Agents to solve complex tasks with improved accuracy and reliability.
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CompanySakana
Context1M
Released2026-06
Updated2026-07-24

Fugu Ultra Overview

Fugu Ultra is an advanced multi-agent AI system developed by Sakana AI, a Japan-based AI company. Unlike traditional single-model AI systems, Fugu Ultra uses a unified API to coordinate multiple specialized AI Agents and models to solve complex problems collaboratively.

The system features an intelligent orchestration framework that automatically assigns different Agent roles, including Thinker, Worker, and Verifier. Multiple AI models collaborate through task planning, result verification, and information synthesis to generate higher-quality outputs.

Fugu Ultra focuses on maximizing output quality rather than simply optimizing response speed. It is designed for challenging tasks such as advanced reasoning, software engineering, scientific research, cybersecurity analysis, research replication, and professional knowledge discovery.

The system supports a 1M-token context window, along with tool calling, vision capabilities, and complex reasoning workflows. Developers can integrate Fugu Ultra into AI applications and enterprise workflows through a unified API.

Fugu Ultra’s key advantage is not being a single “largest” AI model, but acting as an AI project coordinator that intelligently selects and combines different models and Agents based on each task’s requirements.

Fugu Ultra Pricing

PlanPriceDescription
Free Plan Free Provides access to basic Fugu Ultra capabilities, allowing users to explore multi-agent collaboration and advanced reasoning features.
Paid Plan (API Usage) Input:$5/M Tokens;Output:$30/M Tokens Designed for developers integrating Fugu Ultra into AI Agents, enterprise applications, automation systems, and professional workflows.
Enterprise Plan Custom Pricing Provides enterprise AI solutions including large-scale deployment, system integration, security management, and technical support.

Fugu Ultra Key Features

Multi-Agent Collaboration: Coordinates multiple AI Agents to handle complex tasks.
Intelligent Task Orchestration: Automatically assigns the right Agents and workflows for each problem.
Advanced Reasoning: Handles research, engineering, analysis, and professional-level tasks.
Software Development Support: Assists with coding, code review, and engineering workflows.
Tool Calling Capabilities: Connects with external tools and automated workflows.
Long-Context Processing: Supports million-token-level information analysis.

Summary

① AI application developers
② AI Agent developers
③ Software engineers
④ Enterprise technology teams
⑤ Researchers and analysts
⑥ Professionals requiring advanced task automation

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Sakana Model Comparison

Model Context Pricing API Released Global Heat
Fugu Ultra
1M YES 2026-06
39/100
262K YES 2026-08
33/100

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