MUFG hands ChatGPT Enterprise to 35,000 bankers on its way to AI-native!

Hey everyone, it's Shiichan! Today's news is about a big Japanese bank going all-in on AI. When a bank changes how it works, the money side of your everyday life might change too, so I'm pretty excited!

OpenAI News openai.com

What was announced?

This one comes from OpenAI's News. MUFG (Mitsubishi UFJ Financial Group) in Japan is teaming up with OpenAI with the goal of becoming an "AI-native" company. The headline piece: they rolled out ChatGPT Enterprise to about 35,000 employees at Mitsubishi UFJ Bank, so people can use AI as a normal part of their daily work.

The story so far

MUFG started working with OpenAI back in October 2024, beginning with using generative AI to make operations more efficient. For a financial institution, security and governance requirements are really strict, so "it looks handy, but are we actually allowed to use it?" was the real hurdle for a long time. This time they built on enterprise-grade security, which let them roll the tool out bank-wide while meeting the management standards a financial institution needs.

What changes

Adoption inside the company has been lively. Among employees who got accounts, training participation hit 100 %, and mandatory e-learning helped set shared rules for using AI safely and correctly. After OpenAI-led custom GPT training, more than 1,800 custom GPTs were created in four months. Internally they're called "AI bankers," and each department tailors them to its own workflows. In some research tasks, like tracking AI trends or preparing updates for executives, employees reported a 20-30 % drop in workload.

Dive Deep

This isn't just about internal efficiency. MUFG plans to build OpenAI's conversational models (including the ones behind ChatGPT) into its digital financial services. From account opening to customer chats to personal-finance advice, the goal is to go beyond the app-and-branch experience toward a future where natural conversations with AI lead into financial guidance and transactions. MUFG says it will be the first Japanese company to make generative AI a standard feature in its official app. On the team side they're serious too, planning to grow AI specialists from 135 in fiscal 2024 to more than 350.

Wrap-up

• MUFG is teaming up with OpenAI to become an "AI-native" company (from OpenAI's News)
• ChatGPT Enterprise rolled out to about 35,000 employees at Mitsubishi UFJ Bank, with 100 % training participation
• Over 1,800 custom GPTs (internally "AI bankers") created in four months, with a 20-30 % workload drop in research tasks
• Plans to embed conversational models into digital finance: account opening, chats, household-finance advice
• AI specialists growing from 135 to 350+, and a Japan-first for standard generative AI in an official app

If you're curious how big companies actually make AI stick, and how everyday banking might change, this one's for you!