On July 22, 2026, NTT DATA Group reported broad internal adoption of Codex following a companywide rollout of ChatGPT Enterprise and the creation of an internal OpenAI Center of Excellence (CoE). The firm said Codex is now used by approximately 9,000 employees across technical and nontechnical roles.
Deployment and adoption
NTT DATA Group began a strategic partnership with OpenAI in May 2025 and then deployed ChatGPT Enterprise across the organization. The CoE was established to manage license distribution, technical validation, use case development, training and usage monitoring. An internal survey cited by the company found more than 96% of respondents were satisfied with ChatGPT Enterprise and more than 95% reported productivity gains.
Use cases and results
One early Codex use case automated a complex incident analysis that had previously required five experienced engineers and three days of work; the company says Codex completed the same process in 30 minutes. NTT DATA Group described Codex as able to investigate, execute, test and revise work based on instructions, and said that outcome quickly drew attention from senior leadership.
Beyond engineering tasks, the company reports nontechnical employees using Codex to build light tools, organize large file sets, analyze Excel data, summarize documents and script repetitive processes. Examples cited include extracting transportation expenses from credit card statements into travel forms and producing analytical reports from raw data without preparing dashboards in business intelligence tools.
Security, governance and scaling
To support broader use, the OpenAI CoE developed security guidelines and practical adoption guidance covering permitted data, system connections, network traffic management, sandbox modes, automation limits and points for human review. The company said those measures helped create a secure environment for both technical and nontechnical staff.
NTT DATA Group also reported a 1.4x increase in weekly active Codex users after publishing a usage guide and running hands-on training. The company said it has automated some internal operations using Playwright and packaged certain automations as reusable Skills to enable organization-wide adoption.
NTT DATA Group described these steps as part of an “AI Driven Company” vision aimed at embedding AI into daily work and turning identified high-impact use cases into reusable processes the CoE can share more broadly.
Original source: OpenAI News