tl;dr: Open Executive is an open-source (Apache 2.0) AI system from sentelabs.ai that acts as a virtual executive team, orchestrating eight specialist agents (CSO, CFO, CHRO, GC, COO, CMO, CPO, and Board Communications) behind a single executive voice. Built on Claude (Sonnet/Opus) with FastAPI, Next.js, ChromaDB for RAG, and SQLite for episodic memory, it supports company document upload, onboarding wizards, and integrations with Slack, Discord, Telegram, Email, and Google Chat. It can also run on local models via Ollama, LM Studio, or vLLM instead of Anthropic's API.