# NTT Data's Hiroaki Sato on Codex's Workflow Transformation

_Hiroaki Sato of NTT Data details how their AI tool, Codex, has achieved 10,000+ users by automating complex technical analysis and enabling new workflows._

**Updated:** 2026-08-22
**Published:** 2026-06-19
**Source:** https://www.startuphub.ai/ai-news/artificial-intelligence/2026/ntt-data-s-hiroaki-sato-on-codex-s-workflow-transformation

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Hiroaki Sato, Head of AI CoE at NTT Data, discusses the transformative impact of Codex within the organization. Codex, an internal AI tool, has seen remarkable growth, now boasting over 10,000 active users and fostering a significant internal community. Its primary contribution lies in its ability to automate complex technical analysis tasks, dramatically reducing the time required for such processes.

Complex Technical AnalysisDrivertasks requiring significant time and expertiseFrom the article 2 mentionsIts primary contribution lies in its ability to automate complex technical analysis tasks, dramatically reducing the time required for such processes.addressed byNTT Data's CodexCoreinternal AI tool automating complex analysisFrom the article 3 mentionsHiroaki Sato, Head of AI CoE at NTT Data, discusses the transformative impact of Codex within the organization.enablesAutomates AnalysisEffectreduces two-day tasks to just 30 minutesFrom the article 5 mentionsIts primary contribution lies in its ability to automate complex technical analysis tasks, dramatically reducing the time required for such processes.Analyzes ETL FilesContextFrom the articleThe tool is instrumental in analyzing Windows kernel dumps (ETL files), identifying system slowdowns, and pinpointing the root causes, such as hypothetical kernel calls.10,000+ UsersOutcomeFrom the article 2 mentionsCodex, an internal AI tool, has seen remarkable growth, now boasting over 10,000 active users and fostering a significant internal community.drivingWorkflow TransformationOutcomeenabling new and efficient ways of workingFrom the article 2 mentionsThe tool's ability to generate HTML reports automatically after analysis is a key feature that streamlines the workflow for technical personnel.

Sato highlights a specific use case where a task that previously took two days can now be completed in just 30 minutes thanks to Codex. This acceleration is achieved by automating high-complexity analysis and performance analysis, including the generation of detailed reports. The tool is instrumental in analyzing Windows kernel dumps (ETL files), identifying system slowdowns, and pinpointing the root causes, such as hypothetical kernel calls.

The full discussion can be found on **OpenAI Youtube**'s YouTube channel.

  
    

![What Codex Unlocks for NTT Data - OpenAI Youtube](https://img.youtube.com/vi/0JIbgZ544wU/maxresdefault.jpg)

    
      
        
      
    
  
  What Codex Unlocks for NTT Data, from OpenAI Youtube

The video showcases the capabilities of Codex by demonstrating its use in analyzing a system with performance issues. The analysis environment includes Codex IDE running on Windows 11 with WSL Ubuntu. The output presented is a detailed system process breakdown, identifying high CPU usage by various processes. The tool's ability to generate HTML reports automatically after analysis is a key feature that streamlines the workflow for technical personnel.

One of the most significant unlocks highlighted by Sato is Codex's capacity to automate tasks that were once time-consuming for technical officers, such as customer list maintenance. He states, **"Creating new kinds of workflow change we hadn't seen before by Codex."** This suggests that Codex is not merely optimizing existing processes but is fundamentally altering how certain tasks are approached, opening up new possibilities for efficiency and innovation within NTT Data.

The AI Center of Excellence (CoE) at NTT Data plays a pivotal role in driving the adoption and integration of Codex. By focusing on the broader adoption of AI products and platforms, the CoE aims to unlock new potential and create value across the organization. The rapid expansion of Codex's user base indicates its success in meeting critical needs and demonstrating tangible benefits to its users.

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