NTT DATA cuts an incident fix to 30 minutes

OpenAI published a case study saying NTT DATA Group used Codex to automate a complex incident analysis that previously required five senior engineers and three days, cutting it to 30 minutes. Across roughly 9,000 employees using ChatGPT Enterprise and Codex, NTT DATA’s internal survey found over 96% satisfaction and over 95% reporting productivity gains. It’s a vendor-published success story, not independently verified, but it’s a concrete before/after number rather than a vague productivity claim.