simstudioai/sim: Visual AI Agent Orchestration Platform Ships v0.6.23 Today — 27.5K Stars

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Sim Studio provides visual drag-and-drop workflow design for AI agents with 1,000+ integrations and a Copilot that generates nodes from natural language. Version 0.6.23 released April 4, 2026 (223 total releases). Available as cloud service (sim.ai) or self-hosted via Docker/Bun. Positions itself as 'the central intelligence layer for your AI workforce' — the visual-first counterpart to code-first orchestration frameworks like LangGraph.