When do multi-agent systems actually beat a single agent?

A developer notes heavy discussion of on X/Twitter, and observes that projects like crewAI and langgraph mostly focus on how to build agents rather than what meaningful things agents actually produce. They ask whether anyone has seen notable projects or high-quality work built by agents, and specifically whether there are documented cases where multiple agents working together clearly outperformed one powerful single agent.

Key points

  • Points out that like crewAI and langgraph focus on how to build agents, not on proven results
  • Asks the community for real examples where s clearly beat a single strong agent
  • Also asks about any notable projects or work actually produced by agents
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