Sim

Open-source AI workspace where teams build, deploy, and manage AI agents that automate real work — visually, conversationally, or with code.

Sim is an open-source AI workspace designed for teams that need to build, deploy, and manage AI agents at scale. Trusted by over 100,000 builders across startups and Fortune 500 companies, Sim provides a unified command center where agent development, data connection, and run monitoring happen in one place. Teams can construct agents visually using the workflow builder, conversationally through Chat, or programmatically via the API. Sim supports 1,000-plus integrations and connects every major LLM, including OpenAI, Anthropic Claude, Google Gemini, and Mistral.