Sakana Fugu Ultra promises to deliver "the best frontier-level performance"

Japanese AI startup Sakana claims its Fugu Ultra model delivers frontier-level performance by selectively using other AI models like Claude and Gemini for specific tasks, outperforming competitors such as Fable 5, Gemini 3.1 Pro, and GPT-5.5 in benchmarks. The company does not disclose which models are used for each task, stating that Fugu will evolve over time by incorporating newer models.

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