Generative AI6 min read

LLM Systems: Architecture First, Framework Second

LangChain, LangGraph, Claude ADK, Google ADK, PydanticAI — different names, different abstractions, same promise. This article cuts through the framework noise and identifies the five architectural properties that actually determine whether an LLM system survives production.

Cyril Noirot
Cyril Noirot
April 1, 2026
Cyril Noirot

Written by

Cyril Noirot

Data scientist specializing in decision systems for forecasting, pricing, marketing measurement, and risk.

Get notified of new articles

No spam. Technical articles on forecasting, pricing, and decision systems.

Enter your email
Subscribe