Best AI Agent Frameworks Software

Letta (MemGPT) is an open-source agent framework and AI operating system from UC Berkeley researchers that equips stateless LLMs with persistent memory, enabling stateful, self-improving agents.

Botpress is a modern, LLM-native platform for building, deploying, and managing AI agents and chatbots that automate conversations, tasks, and workflows across channels.

Rasa is a platform that extends LLMs with reliable business logic to build secure, scalable conversational AI agents for enterprises.