Dify

Flowise is a low-code builder for LLM apps that lets you create agent workflows and RAG applications with drag-and-drop interfaces.

LangGraph is an agent workflow orchestration framework from the LangChain team, using graph structures to model agent state and transitions.

LangChain is a framework for building applications powered by language models. It provides core capabilities such as chaining, memory management, and agent orchestration, making it a go-to choice for AI agent development.

TaskWeaver is Microsoft's open-source code-interpreter-style agent framework, suitable for data analysis and complex task automation.