LangSmith adds annotation queues, experiment comparisons, and trace review views

LangChain @LangChainOriginally posted 2026.09.25

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A few things you can build: 1️⃣ Annotation queues: Review and label one (or many) runs at a time 2️⃣ Experiment comparisons: Compare outputs and metrics across experiments side by side 3️⃣ Trace reviews: Build trace or thread history views to inspect app behavior https://t.co/FlkGPcfsHV https://t.co/EJzoCw7km1

This post quotes another post: “LangSmith Custom Apps launches and reaches GA”