Frederik Rybansky — Writing https://rybansky.info/writing/ Notes on AI infrastructure, AI agents, retrieval and chatbots by Frederik Rybansky. en Sun, 04 Oct 2026 00:00:00 GMT How to Introduce AI Agents Without Burning the IT Budget https://rybansky.info/writing/ai-agents-in-enterprise/ https://rybansky.info/writing/ai-agents-in-enterprise/ Wed, 18 Feb 2026 00:00:00 GMT Enterprise agent projects usually fail for organisational reasons, not technical ones. Here is the rollout sequence that has worked for me — narrow, measured, and reversible at every step. RAG or Fine-Tuning? Choosing the Right Approach for Knowledge https://rybansky.info/writing/rag-vs-fine-tuning/ https://rybansky.info/writing/rag-vs-fine-tuning/ Thu, 22 Jan 2026 00:00:00 GMT Fine-tuning gets attention and a budget line. Retrieval gets results. For anything that changes — prices, policies, inventory, specs — the answer is almost always retrieval. What an AI Chatbot on a Website Actually Returns https://rybansky.info/writing/ai-chatbot-roi/ https://rybansky.info/writing/ai-chatbot-roi/ Tue, 09 Dec 2025 00:00:00 GMT Chatbots fail commercially in one specific way: nobody measured the right thing, so the pilot survived on conversation counts while support volume stayed exactly where it was.