http://blog.dwornikowski.com/categories/ai--engineering/ Recent content in AI & Engineering on Darek's Blog http://blog.dwornikowski.com/openg.png http://blog.dwornikowski.com/openg.png Hugo -- 0.147.2 en-us Thu, 07 May 2026 12:00:00 +0200 http://blog.dwornikowski.com/posts/local-model-llm-classifier/ Thu, 07 May 2026 12:00:00 +0200 http://blog.dwornikowski.com/posts/local-model-llm-classifier/ A follow-up to my LLM cost-optimization post: how I replaced ~55% of the remaining LLM calls in a product classifier with a small local model trained on the LLM's own labels — and why the local model ended up more accurate than the labels it learned from. http://blog.dwornikowski.com/posts/cutting-llm-costs-token-optimization/ Fri, 24 Apr 2026 12:00:00 +0200 http://blog.dwornikowski.com/posts/cutting-llm-costs-token-optimization/ A walkthrough of how I cut an LLM-based product classifier's token usage by ~92% through compression, two-stage prompting, exact-match lookups, similarity caching, and batching.