Drop peer-to-peer 'GroupChat' agents — five major vendors converged on orchestrator + isolated subagents
Digital Applied·medium signal
Anthropic, OpenAI, AutoGen, Cognition, and LangChain independently settled on the same default: one orchestrator owning full conversation context, spawning ephemeral isolated subagents that return compressed summaries with no peer-to-peer chatter. The 2024 'more agents talking = more intelligence' GroupChat pattern lost ground in production. If you're still wiring agents to message each other directly, you're building the architecture the field just abandoned.