NTT DATA Group cuts incident analysis to 30 minutes with Codex

Building on companywide adoption of ChatGPT Enterprise, NTT DATA Group expanded Codex to approximately 9,000 employees across technical and nontechnical roles. Codex completed an incident analysis in 30 minutes that had previously taken five engineers 3 days NTT DATA Group is a Japan based global IT services company spanning consulting, systems development, and operations. As AI reshapes the business environment, the company is evolving its growth model from expanding revenue by adding headcount to creating greater value through AI.

To support this transformation, NTT DATA Group rolled out ChatGPT Enterprise across the company and introduced programs that help employees make AI part of their daily work. Building on that foundation, the company has expanded Codex to approximately 9,000 employees. Teams across technical and nontechnical roles now use AI not only to explore ideas through conversation, but also to carry out clearly defined tasks.

After beginning a global strategic partnership with OpenAI in May 2025, NTT DATA Group moved to deploy ChatGPT Enterprise across the company. It established an internal OpenAI Center of Excellence, or CoE, to support adoption through license…