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What is Fugu-Ultra v1.1?

Fugu-Ultra v1.1 is the upgraded multi-agent orchestration model created by Sakana AI, specifically engineered for complex coding challenges, agent-centric tasks, and advanced reasoning abilities. Rather than relying solely on a single model, it skillfully coordinates a range of state-of-the-art models, selecting and combining specialized agents that are optimally suited for specific tasks, all while maintaining a cohesive model interface. The recent orchestration enhancement in v1.1 introduces newer frontier models, yielding improved performance metrics across numerous benchmarks and achieving gains of up to 7.9 points over v1.0, with particularly remarkable results on ProgramBench and Terminal Bench 2.1. Furthermore, Fugu is now capable of integrating flawlessly within Claude Code through compatible endpoints, facilitating a collaborative ecosystem of models that operate seamlessly in user-friendly terminal environments for coding, debugging, reviewing, and executing scripts. Users can swiftly establish this integration with a simple one-command installer on both Ubuntu and macOS, while alternative manual setup options are available for Windows and other operating systems, thereby ensuring accessibility for a wide range of users. This innovative advancement not only optimizes workflows but also significantly boosts productivity by harnessing the unique strengths of multiple specialized agents, ultimately leading to more efficient software development practices. Such improvements reflect Sakana AI's commitment to enhancing the capabilities and usability of their orchestration models in response to user needs.

What is Claude Fable 5?

Claude Fable 5 is a frontier AI model developed by Anthropic to deliver advanced reasoning, coding, research, and multimodal capabilities for enterprise and professional users. As a Mythos-class model adapted for broad availability, it combines high-level intelligence with safety-focused deployment controls. The model excels at software engineering tasks, including large-scale code analysis, migrations, debugging, architecture review, and autonomous project execution. Claude Fable 5 also demonstrates strong performance in knowledge work, helping users analyze documents, evaluate financial information, interpret charts and tables, conduct research, and generate actionable insights. Its vision capabilities enable sophisticated image understanding, visual reasoning, and screenshot-based analysis. The model supports long-context workflows and persistent memory utilization, allowing it to work effectively on extended tasks involving millions of tokens of information. Anthropic has implemented a layered safety framework that includes specialized classifiers for cybersecurity, biology, chemistry, and model distillation-related requests. When these areas are detected, requests may be handled by a different model with stricter operational controls. Claude Fable 5 is available through the Claude API and Anthropic’s product ecosystem, providing developers and enterprises with access to advanced AI-powered assistance. The model is designed to enhance productivity, accelerate research, improve software development workflows, and support complex analytical tasks. By combining powerful reasoning, multimodal intelligence, and enterprise-focused safeguards, Claude Fable 5 enables organizations to scale AI adoption responsibly and effectively.

Media

Media

Integrations Supported

.NET
Amp
Brokk
Claude Code
Claude Max
Claude Security
ClickUp Brain
Databricks
Doraverse
GitHub Copilot
Muse
OpenClaw
OpenClaw.Direct
OpenCode
Perplexity Pro
PowerShell
Qwen Code
Revise
StackAI
Twigg

Integrations Supported

.NET
Amp
Brokk
Claude Code
Claude Max
Claude Security
ClickUp Brain
Databricks
Doraverse
GitHub Copilot
Muse
OpenClaw
OpenClaw.Direct
OpenCode
Perplexity Pro
PowerShell
Qwen Code
Revise
StackAI
Twigg

API Availability

Has API

API Availability

Has API

Pricing Information

$6 per 1M tokens (input)
$6 per 1M tokens (input), $36 per 1M tokens (output)
Free Version
Free Trial Offered?

Pricing Information

$10 per 1 million (input)
$10 per million input tokens and $50 per million output tokens
Free Version
Free Trial Offered?

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Supported Platforms

SaaS
Android
iPhone
iPad
Windows
Mac
On-Prem
Chromebook
Linux

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Customer Service / Support

Standard Support
24 Hour Support
Web-Based Support

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Training Options

Documentation Hub
Webinars
Online Training
On-Site Training

Company Facts

Organization Name

Sakana AI

Date Founded

2023

Company Location

Japan

Company Website

sakana.ai/fugu-1-1-claude-code-interface/

Company Facts

Organization Name

Anthropic

Date Founded

2021

Company Location

United States

Company Website

claude.ai

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