3 Picks Friday
Agents

LangChain

Widely used toolkit for LLM apps, tools, and agents.

Last reviewed Oct 10, 2026Open-source libraries; LangSmith and hosted extras are paid. Confirm current pricing on langchain.com.
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Why it shows up in picks

  • Lots of integrations, tutorials, and community code
  • LangGraph is a common next step when you need explicit agent state

Watch-outs

  • The surface area is large, which can confuse beginners
  • Abstractions change; you should pin versions and read current docs
Huge ecosystem and examplesEasy to over-build