OpenAI to Grant Some Japanese Banks Access to New Models
By Megumi Fujikawa
TOKYO--OpenAI has agreed to give some Japanese banks access to its new artificial-intelligence model, Japan's finance minister said, a move that could bolster the nation's cyber-defense.
"With frontier AI now recognized as a threat, this step could serve as a welcome catalyst to strengthen cybersecurity within Japan's financial sector," Finance Minister Satsuki Katayama told reporters Friday after meeting with OpenAI executives.
Being able to use the model, known as GPT-5.5 Cyber, could allow Japan to better scrutinize systemic risks, pinpoint gaps in information security and implement countermeasures.
Japan's financial sector has been closely tracking the emergence of frontier AI models that have become a focal point of global concern due to their ability to autonomously identify software vulnerabilities.
Models like Anthropic's Claude Mythos and OpenAI's GPT-5.5 Cyber can discover and exploit flaws at a velocity that far outpaces human capabilities, raising alarm that unleashing them poses an existential threat to financial systems with outdated cyber defenses.
Some Japanese financial firms will also gain access to Mythos after an approval from the Trump administration, Katayama said.
Write to Megumi Fujikawa at megumi.fujikawa@wsj.com
(END) Dow Jones Newswires
May 29, 2026 04:35 ET (08:35 GMT)
Copyright (c) 2026 Dow Jones & Company, Inc.The articles, information, and content displayed on this webpage may include materials prepared and provided by third parties. Such third-party content is offered for informational purposes only and is not endorsed, reviewed, or verified by Morningstar.
Morningstar makes no representations or warranties regarding the accuracy, completeness, timeliness, or reliability of any third-party content displayed on this site. The views and opinions expressed in third-party content are those of the respective authors and do not necessarily reflect the views of Morningstar, its affiliates, or employees.
Morningstar is not responsible for any errors, omissions, or delays in this content, nor for any actions taken in reliance thereon. Users are advised to exercise their own judgment and seek independent financial advice before making any decisions based on such content. The third-party providers of this content are not affiliated with Morningstar, and their inclusion on this site does not imply any form of partnership, agency, or endorsement.
Popular
These Overvalued Stocks Have Plenty of Room to Fall
3 of the Best Dividend Stocks to Own
4 Big Impacts from the US Midterm Elections for Investors
3 Stocks to Sell and 3 Stocks to Buy for November
United States