tech
Sakana Fugu Ultra promises to deliver “the very best frontier-level performance” by... using frontier AI models.
Japanese AI startup Sakana has posted benchmark results and beta tester impressions saying that its Fugu models compare favorably with or beat the likes of Fable 5, Gemini 3.1 Pro, and GPT-5.5.

TL;DR
- Sakana's Fugu AI models show competitive or superior performance compared to Fable 5, Gemini 3.1 Pro, and GPT-5.5.
- Fugu models strategically employ other advanced AI models like Claude and Gemini for specialized tasks.
- The specific AI model used for a task is not disclosed to the user.
- Sakana aims to continuously improve Fugu by incorporating newer and more efficient AI models.