Kiryl Rusanau
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Thoughts on AI integration, enterprise Java, and building products.

AI Integration2026-02-188 min read

Spring AI vs LangChain4j: Which Java AI Framework Should You Choose in 2025?

A production-tested comparison of Spring AI 1.0 and LangChain4j 1.0 — architecture, developer experience, RAG capabilities, performance benchmarks, and when to use each.

AI Integration2026-02-186 min read

Python Built the AI Lab. Java Is Building the AI Factory.

Why enterprise teams are choosing Java for production AI — and why the Python vs Java debate misses the point entirely.