Mitsubishi UFJ Financial Group (MUFG) and its subsidiary MUFG Bank are making a second investment in Sakana AI K.K., an artificial intelligence research and development firm.
While the investment amount was not disclosed, it will position MUFG as the largest Japanese investor in Sakana AI.
Sakana AI’s initiatives include “AB MCTS,” which combines the strengths and compensates for the weaknesses of multiple AI models to tackle complex tasks, and the “Darwin Gödel Machine,” an AI system capable of rewriting its own code to enhance its performance.
The company recently formed an “Applied Team” to boost its work on real-world AI deployment by connecting its research and technologies to practical business needs, MUFG said in a statement.
MUFG first backed Sakana AI during its Series A round in September 2024. MUFG Bank also entered a partnership with the firm in May 2025, collaborating on AI solutions to help address the bank’s operational challenges.
Click here for more on Banking
