Japan releases Sakana Fugu, a new AI model outperforming Claude Mythos and Gemini

A new AI model named Sakana Fugu, developed in Japan, has reportedly surpassed the performance of leading models like Claude Mythos, GPT-5.5, and Gemini. This development positions Sakana Fugu as a significant contender in the rapidly advancing field of artificial intelligence. AI

IMPACT This new model from Japan could intensify competition among leading AI developers, potentially driving further advancements in model capabilities.

RANK_REASON Frontier-lab model release with system card. [lever_c_demoted from frontier_release: ic=1 ai=1.0]

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• Claude
• Gemini
• GPT-5.5
• Japan
• Mythos
• Sakana Fugu

• model release

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