In depth
LangChain has the largest agent community in Python, the most third-party integrations, the most tutorials. Its strengths are reach and flexibility: anything you can write in Python, you can do in LangChain. Its trade-offs are framework weight, hot-reload friction, and the surface area you have to maintain to ship anything beyond a demo. Honest comparison linked below.
Related concepts
Agent frameworkSoftware that handles the agent loop, tool registration, and orchestration, so you do not write it yourself.CrewAIA Python multi-agent framework that organises agents into role-based crews.YAML-first configDefining agents declaratively in a YAML file the runtime executes, instead of imperatively in framework code.
Read the deep dive
Digitorn vs LangChain: an honest comparison
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Engineering notes from the Digitorn team. No marketing, no launch announcements, no "10 prompts that will change your life". Just the things we write that we'd want to read.