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What is Sakana Fugu Ultra?

Sakana Fugu Ultra is the advanced, performance-focused model in the Sakana Fugu platform, designed to coordinate multiple expert AI agents for difficult and high-stakes work. It is built for users who need stronger results on complex multi-step tasks than a single model or basic AI assistant can usually provide. Through one OpenAI-compatible API, Fugu Ultra dynamically selects and coordinates agents from a powerful model pool while presenting the experience as one model. This allows teams to use multi-agent intelligence without manually building agent workflows, assigning roles, or switching between different providers. Fugu Ultra is optimized for demanding use cases such as software engineering, code review, Kaggle competitions, paper reproduction, cybersecurity analysis, scientific problem solving, literature investigations, patent analysis, and autonomous research. The system is grounded in research-driven orchestration methods, including TRINITY and the Conductor, which focus on learning how to route tasks, coordinate agents, and create effective collaboration patterns. Compared with the standard Fugu model, Fugu Ultra uses a deeper expert pool to prioritize quality on harder problems. It is designed for workloads where precision, reasoning depth, completeness, and reliability are more important than low latency alone. Organizations can opt out of specific models or providers in the agent pool to meet data, privacy, compliance, procurement, or internal governance requirements. Fugu Ultra also includes fixed pay-as-you-go pricing for input, output, and cached input tokens, with higher rates for very long context usage. Sakana Fugu Ultra helps technical teams plug advanced multi-agent orchestration into existing workflows while reducing single-vendor dependency and improving performance on challenging AI tasks.

What is GPT-5.5 Instant?

The newest version of ChatGPT, known as GPT-5.5 Instant, has been introduced as the standard model, meticulously developed to improve both intelligence and accuracy, resulting in responses that are more straightforward and precise, tailored to the unique needs of each user. This upgrade is crafted for everyday conversations, benefiting millions by enriching interactions with more robust and relevant answers across a diverse range of subjects, all while maintaining a seamless conversational flow and effectively leveraging shared context to create personalized experiences. Furthermore, GPT-5.5 Instant has made significant strides in reliability, showing enhanced factual accuracy in crucial areas such as healthcare, legal matters, and finance, where exactness is essential. The model also showcases increased capability in managing daily tasks, particularly in the areas of processing visual uploads, tackling STEM-related questions, and determining when to utilize web searches for the best results. Each response is not only brief and to the point but also preserves the engaging and enjoyable nature that users have come to appreciate, thereby elevating both satisfaction and the quality of interactions. This model is designed not just to fulfill user expectations but also to consistently surpass them, making every conversation a more enriching experience. Additionally, the advancements in GPT-5.5 Instant reflect a commitment to continuous improvement, ensuring that users can rely on it for an exceptional conversational experience.

Media

Media

Integrations Supported

ChatGPT
ChatGPT Enterprise
ChatGPT Plus
ChatGPT Pro
Sakana Fugu

Integrations Supported

ChatGPT
ChatGPT Enterprise
ChatGPT Plus
ChatGPT Pro
Sakana Fugu

API Availability

Has API

API Availability

Has API

Pricing Information

$20 per month
Free Trial Offered?
Free Version

Pricing Information

Pricing not provided.
Free Trial Offered?
Free Version

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/

Company Facts

Organization Name

OpenAI

Date Founded

2015

Company Location

United States

Company Website

openai.com/index/gpt-5-5-instant/

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