NousResearch/hermes-agent

NousResearch/hermes-agent is an open-source, self-improving AI agent released in February 2026 by Nous Research. This agent is designed to grow with users by employing a built-in learning loop that enables it to create and refine skills based on experience, retain knowledge across sessions, and build a personalized model of the user. It can operate on various infrastructures, including a $5 VPS or a GPU cluster, and supports interaction across more than 20 platforms like Telegram, Discord, and Slack. The project emphasizes data privacy, stating that all user data remains on the local machine with no telemetry or cloud lock-in.