NTT DOCOMO improves LLM usage analysis efficiency by 90% with Databricks
NTT DOCOMO built an internal 'LLM value-added platform' (approximately 10,000 monthly active users, 3 million monthly calls) and used the Databricks Data + AI Platform, including Model Serving for Azure OpenAI's GPT-4o and AI/BI Genie, to automate analysis of usage logs. This replaced manual Excel/Jupyter workflows, cutting monthly analysis work from 66 hours to 6 hours, a 90% reduction, while improving data governance via Unity Catalog.
Overview
NTT DOCOMO built an internal 'LLM value-added platform' (approximately 10,000 monthly active users, 3 million monthly calls) and used the Databricks Data + AI Platform, including Model Serving for Azure OpenAI's GPT-4o and AI/BI Genie, to automate analysis of usage logs. This replaced manual Excel/Jupyter workflows, cutting monthly analysis work from 66 hours to 6 hours, a 90% reduction, while improving data governance via Unity Catalog.
The challenge
As NTT DOCOMO's internal LLM value-added platform expanded, local tools like Excel and Jupyter Notebook could not handle the explosive growth in log data volume. Manual processes led to inaccuracies, duplication, and incomplete data, and storing logs locally on employees' development PCs through Excel and Jupyter Notebook posed data privacy and security risks since they often contained sensitive and confidential information.
The solution
NTT DOCOMO invested in the Databricks Data + AI Platform to conduct detailed analysis of LLM platform usage. The company uses Databricks Model Serving to deploy Azure OpenAI's GPT-4o model for log analysis, extracting and categorizing entities from user prompts and responses. Dashboards were built and deployed as production jobs using Databricks Lakeflow Jobs, automating tasks like updating, version control, and error detection. Fine-grained access controls were applied using Unity Catalog, and the company adopted Databricks' AI/BI Genie, a conversational analysis tool with a chat-style interface for natural-language data analysis and visualization.
Reported business value
NTT DOCOMO reduced the time spent manually processing and analyzing LLM usage data by 90%, cutting monthly analysis work from 66 hours to 6 hours. As of February 2025, the LLM value-added platform had approximately 10,000 monthly active users and 3 million monthly calls.
Sources
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