OpenAI's Swarm is a new addition to the multi-agent framework space, offering a unique approach compared to established players like CrewAI and Autogen. While all three frameworks structure agents similarly, they differ in task execution, collaboration methods, memory management, and tooling flexibility. Swarm stands out for its simplicity, using LLM function calls as the primary method of agent interaction. As OpenAI continues to develop Swarm, it may bring new perspectives to multi-agent AI systems.