
Geography: Asia Pacific · East Asia · Japan
Sakana AI, founded in 2023 by former Google Brain researchers David Ha and Llion Jones (co-inventor of the Transformer architecture) in Tokyo, has raised $479 million total including a $135 million Series B at a $2.65 billion valuation in November 2025. The company's research focuses on nature-inspired AI — evolutionary algorithms, collective intelligence, and model merging techniques — developing approaches that complement brute-force scaling.
Sakana has established strategic partnerships with major Japanese corporations including MUFG (Mitsubishi UFJ Financial Group) and Daiwa Securities for custom AI development in finance. The company's Applied Team is commercializing research for Japanese enterprise customers, positioning Sakana as the bridge between global frontier AI research and Japan's corporate technology needs.
Sakana's significance extends beyond its own products: it demonstrates that world-class AI research can be built in Japan. The company's Tokyo location was a deliberate choice — Japan's copyright exemptions for AI training data, large talent pool of engineers, and proximity to Asian markets create advantages over Silicon Valley. Sakana's success is catalyzing a broader Japanese AI startup ecosystem, with other AI companies choosing Tokyo as their base.