Originally published on AI Tech Connect.
What you need to know If you are starting an agent project in 2026, three Python frameworks will appear on every shortlist: LangGraph, CrewAI and the OpenAI Agents SDK. All three are production-viable. All three can call tools, coordinate multiple agents and stream results. And yet choosing between them is not a coin flip, because they encode three different answers to the same question: who controls what happens next? LangGraph says you do — every transition is an explicit edge in a state machine you design. CrewAI says the framework does — you describe a team of role-playing agents and let its process engine coordinate them. The OpenAI Agents SDK says the model does — it hands the LLM a handful of primitives and stays out of the way. That philosophical split matters far more than any…
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