What LangChain Is: an Open Agent Framework, Not a Model Brand
MIT. Compose models, tools and retrieval. LangGraph / LangSmith are related products, not the same package.
Read originalA framework, not ChatGPT
LangChain is how you write LLM components in code. Official README: agent engineering platform.
Three names
LangChain the framework, LangGraph workflows, LangSmith observability. Separate installs and docs.
Vs Dify / OpenAI Agents SDK
Visual, less code → Dify. Thin official OpenAI library → Agents SDK. Many integrations in code → LangChain.
Hub: /en/langchain.
Topic hub
LangChain
What LangChain is, how to install it, and how it compares with the OpenAI Agents SDK and Dify. MIT framework, not a model brand.
Topic hub
OpenAI Agents SDK
What the OpenAI Agents SDK is, how to install it, and how it compares with LangChain and Claude Code. Package openai-agents — not ChatGPT.
Made by Laojin · AI that ships
365SkillAn agent-skills lab: 13 in-house skills
365Skill is our public lab for agent skills: a standard SKILL.md format, a deny-by-default publish policy, and an evals harness. It holds 13 original 365 skills — 11 public and 2 internal. Apache-2.0 — star it, install it, file issues.
More from Laojin: Sellenca · 365AIOrg · AllModelsAPI · 365Loopa · 365 Ops
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