NTT DATA Group cuts incident analysis to 30 minutes with Codex

NTT DATA Group, a Japan-based IT services company, deployed Codex (an AI agent that can independently investigate, execute, test, and revise tasks based on instructions) to approximately 9,000 employees after first rolling out ChatGPT Enterprise company-wide. A key early success showed Codex completing complex incident analysis in 30 minutes, a task that previously required five engineers and three days, which demonstrated the tool's potential and built momentum for broader adoption across both technical and nontechnical roles.