Tokyo, May 29 (Jiji Press)--Japan's three megabanks are expected to obtain access to a new artificial intelligence model of OpenAI, the U.S. company behind generative AI chatbot ChatGPT, according to informed sources. The banks--MUFG Bank, Sumitomo Mitsui Banking Corp. and

OpenAI's GPT-5.5-Cyber model heads to Japan's three megabanks as part of a US-Japan cybersecurity deal covering 15 critical infrastructure sectors.

OpenAI will provide its GPT-5.5-Cyber model to Japan's megabanks and government for cybersecurity, as AI-driven threats reshape the financial security landscape.