Every comparison that crowns a universal winner is doing you a disservice. They are different tools for different builders. - LangGraph: the control pick. Graph-based workflows, explicit state, Python-first. Control costs decisions, and decisions cost weekends. - CrewAI: the team pick. Role-based agents, genuinely pleasant abstraction, impressive running fast. Less visibility when things go sideways. Speed now, mystery later. - AutoGen: the veteran. Conversational patterns, deep research history. Some patterns show their age. Boring that ships beats exciting that stalls. - The verdict is a question back: how much control do you actually want? Maximum: LangGraph. Fastest team: CrewAI. Conversational roots: AutoGen. - Then the question nobody asks before shipping: how will you watch it run? Make sure your pick exposes clean run traces. Want one built instead of choosing? PrivateLLM deploy puts the private LLM underneath your agents on AWS for $50 plus usage.