Blog
Notes by Arpit Desai
Writing helps me think more clearly about architecture, software delivery and AI. Here I share ideas, frameworks and real‑world lessons from building and operating systems.
How to Design Production‑Ready AI Systems (Beyond Just Calling an API)
A practical guide to thinking in layers – model, orchestration, retrieval and observability – so your AI systems behave reliably in production instead of just in a notebook.
How I Evaluate LLM‑Powered Products: A Pragmatic Framework
A practical evaluation framework for LLM‑powered products that looks beyond prompts to metrics, datasets, architecture and continuous monitoring.
RAG vs Fine‑Tuning: What Enterprises Should Really Choose
A decision‑focused comparison of retrieval‑augmented generation and fine‑tuning, with a practical table you can use in enterprise conversations.
Why Most Engineering Teams Fail at Technical Delivery (And How to Fix It)
A leadership‑oriented look at why technical delivery breaks down – and a practical framework for architecture, process and ownership that helps teams ship reliably.
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How to follow my work
As I publish more writing and projects, this page will collect them. For now, the best way to keep in touch is to reach out directly.
If you’d like to hear when I publish new posts or you want to discuss something I’ve written, feel free to send me a short note with a bit of context about you and what you’re working on.