NTT DATA Group has reduced complex incident analysis from three days to 30 minutes using Codex, demonstrating the AI tool's potential to transform workflows. The company has now expanded Codex to 9,000 employees, both technical and nontechnical, across various roles.
TL;DR
- NTT DATA Group automates complex incident analysis in 30 minutes with Codex, a significant reduction from the previous three-day process.
- Codex adoption has expanded to 9,000 employees, enabling both technical and nontechnical staff to automate tasks and improve efficiency.
- The company's 'Client Zero' approach encourages employees to test and adopt AI in their daily work, identifying new use cases for Codex.
What happened
NTT DATA Group, a Japan-based global IT services company, has integrated Codex into its operations, enabling employees to automate complex tasks and improve efficiency. The company initially deployed ChatGPT Enterprise in May 2025, establishing an OpenAI Center of Excellence (CoE) to support adoption and usage.
One of the first successful use cases for Codex was automating a complex incident analysis that previously required five experienced engineers and took three days to complete. With Codex, the process was completed in just 30 minutes, gaining attention from senior leaders and building momentum for further adoption.
NTT DATA Group has expanded Codex to approximately 9,000 employees, both technical and nontechnical, across various roles. Employees use Codex to automate tasks such as building lightweight tools, organizing files, analyzing data, summarizing documents, and scripting repetitive processes.
The company has developed security guidelines and practical adoption guidance to create a secure environment for employees to use Codex safely and confidently. This has enabled Codex adoption to move beyond a small number of advanced use cases and become part of the daily work of approximately 9,000 employees.
Why it matters
For AI/ML developers, the integration of Codex into NTT DATA Group's operations demonstrates the potential of AI tools to automate complex tasks and improve efficiency. This can inspire developers to explore new use cases and applications for AI in various industries.
Startup founders can learn from NTT DATA Group's 'Client Zero' approach, which encourages employees to test and adopt AI in their daily work. This approach can help startups identify new use cases for AI and drive innovation within their organizations.
Tech investors can see the value in AI tools like Codex that can transform workflows and improve efficiency. The success of Codex at NTT DATA Group can serve as a proof point for the potential of AI tools to drive growth and innovation in various industries.
Key facts
- NTT DATA Group reduced complex incident analysis from three days to 30 minutes using Codex.
- Codex has been expanded to approximately 9,000 employees, both technical and nontechnical, across various roles.
- More than 96% of respondents in an internal survey reported satisfaction with ChatGPT Enterprise, and more than 95% reported productivity gains.
- NTT DATA Group has developed security guidelines and practical adoption guidance to create a secure environment for employees to use Codex safely and confidently.
- Codex adoption has increased weekly active users by 1.4 times after publishing a usage guide and conducting hands-on training.
- NTT DATA Group has automated internal system operations using Playwright, reducing time spent on routine daily tasks and enabling organization-wide adoption by packaging the automation as Skills.
- The company's 'AI Driven Company' vision aims to amplify the knowledge and expertise of every employee, create new services and business processes, and help customers transform their operations and grow.
Context
NTT DATA Group's integration of Codex into its operations is part of a broader trend in the AI industry, where companies are increasingly adopting AI tools to automate tasks and improve efficiency. This trend is driven by the growing availability of powerful AI tools and the need for companies to stay competitive in a rapidly evolving business environment.
The success of Codex at NTT DATA Group can also be seen as a testament to the potential of AI tools to transform workflows in various industries. As AI tools become more powerful and accessible, companies across industries are exploring new use cases and applications for AI.
NTT DATA Group's 'Client Zero' approach is an example of how companies can drive innovation from within by encouraging employees to test and adopt new technologies. This approach can help companies identify new use cases for AI and drive innovation within their organizations.