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SoftBank and OpenAI Launch Patching as a Service to Shield Japan’s Critical Firms

The AI tool is built to find software flaws and recommend fixes for major infrastructure operators, and the companies plan a fast staff scale-up to roll it out nationally.

Masayoshi Son, left, chairman and CEO of SoftBank Group, listens to Mark Chen, chief research officer for OpenAI, during a talk at their business event in Tokyo, Tuesday, June 16, 2026. (AP Photo/Hiro Komae)
Colin Jarvis, head of Forward Deployed Engineering for OpenAI, speaks during its business event with SoftBank at a hotel in Tokyo, Tuesday, June 16, 2026. (AP Photo/Hiro Komae)
SoftBank Chairman and CEO Masayoshi Son and OpenAI's Chief Research Officer Mark Chen attend an event to pitch AI for businesses, in Tokyo, Japan, June 16, 2026. REUTERS/Manami Yamada
Colin Jarvis, head of Forward Deployed Engineering for OpenAI, speaks during its business event with SoftBank at a hotel in Tokyo, Tuesday, June 16, 2026. (AP Photo/Hiro Komae)

Overview

  • The joint venture SB OAI Japan unveiled the commercial “Patching as a Service” product in Tokyo on Tuesday to help the nation’s top 3,000 firms that run airports, power grids and transport systems detect and fix vulnerabilities, and SoftBank offered free diagnostic trials to attendees.
  • The service uses OpenAI models to first diagnose system weaknesses and then analyze what fixes are needed, packaging those findings into a managed patching workflow for customers.
  • SoftBank said the initial rollout team is about 50 people and will expand to roughly 1,000 staff as the company scales the service, and it did not announce any pricing at the launch.
  • The move deepens commercial and financial ties between SoftBank and OpenAISoftBank is a major backer of OpenAI — and positions the venture as a large-scale example of defensive uses of powerful AI models.
  • The launch raises governance and security questions because concentrated access to advanced models can speed both defenses and attacks, a concern underscored by recent restricted model access for Japanese megabanks and U.S. limits on rival models.