# MUFG deployed ChatGPT Enterprise to all 35,000 employees

Digest AI · Enterprise & Industry · published 2026-09-28T17:46:00Z

Canonical: https://digestai.news/story/mufg-deployed-chatgpt-enterprise-to-all-35-000-employees

## Summary

MUFG began a phased rollout of ChatGPT Enterprise to all approximately 35,000 employees starting in January 2026. The goal is to improve efficiency and sophistication across tasks like internal document creation, research, customer support, and analytical work. The deployment followed a strategic collaboration agreement with OpenAI initiated in 2024.

MUFG stated that OpenAI was chosen not for technical capability but for its track record in AI adoption at large companies and its stance on sharing corporate transformation direction. The company emphasized that sustaining AI adoption is harder than choosing the technology.

To drive adoption, MUFG made training mandatory and introduced an AI Champion system, placing leaders in each department to promote AI utilization. As a result, over 1,800 custom GPTs were created by employees in four months. The initiative is now moving toward customer experience, with early results showing a 1.2-fold increase in MUFG Bank account openings and doubled WealthNavi for MUFG Bank openings compared to fiscal year 2024.

## Key points

- MUFG deployed ChatGPT Enterprise to all ~35,000 employees starting January 2026
- Over 1,800 custom GPTs were created by employees in four months
- MUFG Bank account openings increased 1.2-fold and WealthNavi openings doubled vs fiscal year 2024

## Why it matters

MUFG's approach highlights that organizational design and change management are critical for AI adoption success, offering a model for large enterprises seeking to scale AI beyond technical deployment.

## Sources

1. [AI x Business 5 MUFG deployed ChatGPT to all 35,000 employees. The essence was not the technology](https://note.com/noble_curlew4385/n/nd15a9cbc0862?hl=en) (note.com, 2026-09-28)

## Cite

Digest AI, "MUFG deployed ChatGPT Enterprise to all 35,000 employees", 28 September 2026, https://digestai.news/story/mufg-deployed-chatgpt-enterprise-to-all-35-000-employees

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