Cut 68% Redundant Compute with LangGraph 1.x Node Caching & Deferred Nodes in 2026
LangGraph 1.x (August 2026) ships node caching, deferred fan-in nodes, pre/post model hooks, and a content-block streaming API. We use all four to cut 68% of redundant compute and 56% of cost on a 40-run/day research pipeline.