A few years ago, while searching for a suitable open-source AI development platform, I came across the development environment Langflow from DataStax. It was originally developed by Logspace, acquired by DataStax in 2024, and acquired by IBM in 2025.
With Langflow , complex AI workflows, applications, or agents can be created and tested using a visual user interface. An extensive library provides many components that enable the easy development of complex pipelines via drag-and-drop. In addition , there are ready-made solution templates that can be customized and used immediately. Users are free to choose the AI models they want.
The overview shows a pipeline that was able to demonstrate and illustrate the functionality and benefits of a GraphRAG—in conjunction with a semantic model (Context Graph) in the W3C standard format RDF 1.2—for a customer in the context of supply chain processes.