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Core ConceptsBuilding Your First LLM Chain: A Developer's Guide to Sequential Logic

Avnish Yadav – February 22, 2026 · 6 MIN READ

Building Your First LLM Chain: A Developer's Guide to Sequential Logic

LLMs are powerful, but they are stateless. To build real applications, you need to connect outputs to inputs. Here is a practical, code-first guide to building your first chain using Python and LCEL.