CrewAI

CrewAI organizes agents by role — a “researcher,” a “writer,” a “reviewer” — each with a defined goal and backstory, collaborating on a shared task in a structured process rather than an open-ended conversation. The role-based framing is deliberately closer to modeling a human team than a generic agent graph.

Positioned as more opinionated and quicker to get started with than LangGraph or AutoGen, at the cost of less low-level control over exactly how agents communicate.