Essays and posts on AI engineering, agentic systems, and data-driven analysis.https://jkarancsi.com/en-ushttps://jkarancsi.com/blog/cutting-agent-cost/https://jkarancsi.com/blog/cutting-agent-cost/Cascade-a reduced measured coding-task cost by 70.5% on 13 golden tasks, with the crucial limit that escalation was never exercised.Sat, 03 Oct 2026 00:00:00 GMThttps://jkarancsi.com/blog/price-performance-agent-workloads/https://jkarancsi.com/blog/price-performance-agent-workloads/Measuring agent jobs exposed an unreliable summary judge; pairwise comparisons and deterministic checks give a more careful basis for model choices.Sat, 03 Oct 2026 00:00:00 GMThttps://jkarancsi.com/blog/what-legacy-code-taught-me-about-learning-ai-from-scratch/https://jkarancsi.com/blog/what-legacy-code-taught-me-about-learning-ai-from-scratch/LinkedIn post on what CERN legacy code taught me about durability, and building a transformer from scratch to learn AI fundamentals.Sun, 05 Jul 2026 00:00:00 GMThttps://jkarancsi.com/blog/post-ai-knowledge-base/https://jkarancsi.com/blog/post-ai-knowledge-base/Published post on the agentic knowledge-base approach and context discipline.Tue, 09 Jun 2026 00:00:00 GMThttps://jkarancsi.com/blog/covid-superspreader-analysis/https://jkarancsi.com/blog/covid-superspreader-analysis/Public analysis arguing super-spreader events break SEIR models; a physicist's data-driven take.Thu, 23 Apr 2020 00:00:00 GMT