The Evolution of Chains
LCEL is the modern way to compose chains in LangChain. It uses a Unix-like pipe operator (
LangChain Expression Language (LCEL) Guide
April 4, 2026 • By Abdul Nafay • LangChain
The architecture of LangChain Expression Language (LCEL) Guide. A deep dive into the LangChain industry's transition to a fully autonomous, agent-led infrastructure.