AI Agent Frameworks vs Plain Python
Every agent framework wraps the same patterns. See exactly what each one does — and what it looks like without the abstraction.
LangChain vs Building from Scratch
Compare LangChain's abstractions to plain Python. See what AgentExecutor, @tool, ConversationBufferMemory, and output parsers actually do — in ~60 lines.
CrewAI vs Building from Scratch
Compare CrewAI's Agent, Task, and Crew abstractions to plain Python. See what crew orchestration, tool registration, and task delegation actually do.
AutoGen vs Building from Scratch
Compare Microsoft AutoGen's ConversableAgent and nested chats to plain Python. See what multi-agent conversations and group chat actually do under the hood.
OpenAI Agents SDK vs Building from Scratch
Compare OpenAI's Agents SDK (formerly Swarm) to plain Python. See what Runner, handoffs, and guardrails do — it's the same agent loop you can build yourself.
Want to see the plain Python version?
Build every pattern these frameworks implement — from scratch, in 9 interactive lessons.
Start the course