~/talk

Production-Ready GenAI with Open Models for Java Teams

Talkat JavaOne 2026 · 2026-03-17..03-19· [ai-assisted-development, java]
slides:none on file

Shows a Java Spring Boot demo that ingests three docs into an in‑memory embedding store, runs RAG with LangChain for J and Ollama, and evaluates answers with a 3‑question fidelity test that reports latency, precision, relevance and faithfulness. Demonstrates swapping models without code changes, quantized GGUF models on CPU, TTFT and tokens/sec tradeoffs, and an example MoE model NeMo‑Tron 3 Super 120B (120B params, 12B active). Cites a real case that cuts token cost by 90% via routing.

AI-written summary · about

  1. 0:00Introduction to open models
  2. 1:03Why enterprises choose open
  3. 4:00Key open model terms
  4. 7:24Open source vs open weight
  5. 8:46Open model landscape
  6. 9:42Model selection and benchmarks
  7. 12:37JVM resource management
  8. 15:08LangChain4j integration
  9. 19:19Local inference with Ollama
  10. 20:10Live demo: local inference
  11. 21:51Tool calling and orchestration
  12. 26:56Building RAG pipelines
  13. 29:02Evaluating RAG quality
  14. 35:45Safety layers
  15. 38:07Production deployment options
  16. 47:24Model tools and runners
  17. 48:54Observability and conclusion
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