# Sakana Fugu Ultra promises to deliver "the best frontier-level performance" > Source: > Published: 2026-06-24 05:15:05+00:00 R 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](https://sakana.ai/fugu-release/) saying that its Fugu models compare favorably with or beat the likes of Fable 5, Gemini 3.1 Pro, and GPT-5.5. The company [says](https://github.com/SakanaAI/fugu/blob/main/Fugu_technical_report.pdf) Fugu carefully chooses when to use other frontier AI models like Claude and Gemini on specific tasks, although it [doesn’t tell users](https://sakana.ai/fugu/#:~:text=No.-,The%20specific%20models,-Fugu%20selects%20and) which model was used for what. “Over time, Sakana Fugu will naturally grow by incorporating newer, more efficient models, including our own.” **Follow topics and authors** from this story to see more like this in your personalized homepage feed and to receive email updates. Loading comments Getting the conversation ready... ## Most Popular Most Popular - Meta launches cheaper smart glasses without Ray-Ban - The best Prime Day deals we found on our favorite gear - The Steam Machine is the most ambitious game console I’ve ever played - Valve will finally let you build your own Steam Machine with SteamOS for desktop - Elon Musk and the plot to hijack America’s broadband