Into the Passionate Energy of the (opens in new tab)

The PD1 AI Hackathon 2025 served as a strategic initiative by LY Corporation to embed innovative artificial intelligence directly into the LINE messaging ecosystem. Over 60 developers collaborated during an intensive 48-hour session to transition AI from a theoretical concept into practical features for messaging, content, and internal development workflows. The event successfully produced several high-utility prototypes that demonstrate how AI can enhance user safety, creative expression, and technical productivity.

Transforming Voice Communication through NextVoIP

• The "NextVoIP" project utilized Speech-to-Text (STT) technology to convert 1:1 and group call audio into real-time data for AI analysis.
• The system was designed to provide life security features by detecting potential emergency situations or accidents through conversation monitoring.
• AI acted as a communication assistant by suggesting relevant content and conversation topics to help maintain a seamless flow during calls.
• Features were implemented to allow callers to enjoy shared digital content together, enriched by AI-driven recommendations.

Creative Expression with MELODY LINE

• This project focused on the intersection of technology and art by converting chat conversations into unique musical compositions.
• The system analyzed the context and emotional sentiment of messages to automatically generate melodies that matched the atmosphere of the chat.
• The implementation showcased the potential for generative AI to provide a multi-sensory experience within a standard messaging interface.

AI-Driven QA and Test Automation

• The grand prize-winning project, "IPD," addressed the bottleneck of repetitive manual testing by automating the entire Quality Assurance lifecycle.
• AI was utilized to automatically generate and manage complex test cases, significantly reducing the manual effort required for mobile app validation.
• The system included automated test execution and a diagnostic feature that identifies the root cause of failures when a test results in an error.
• The project was specifically lauded for its immediate "production-ready" status, offering a direct path to improving development speed and software reliability.

The results of this hackathon suggest that the most immediate value for AI in large-scale messaging platforms lies in two areas: enhancing user experience through contextual awareness and streamlining internal engineering via automated QA. Organizations should look toward integrating AI-driven testing tools to reduce technical debt while exploring real-time audio and text analysis to provide proactive security and engagement features for users.