Which Java framework handles AI better: LangChain4j or Spring AI? In this live coding showdown, we’ll build a semantic code search application from scratch, putting both frameworks to the test. We’ll cover project setup, using language models, setting up a retrieval-augmented generation workflow, and creating a REST API.

You’ll see how these frameworks handle embedding generation, vector database integration, and real-world development challenges. By the end, the audience decides who wins—based on which framework gets the job done faster, better, and with less hassle (and whether the demo actually works).

This isn’t just a comparison; it’s a live experiment under pressure. Come and see which one comes out on top!

This is a fun hands–on talk – two speakers, two laptops, two IDEs, one demo. Who will do better? Whose demo will even work? Who will have a better developer experience? The audience will be the judge.