Disclaimer: I work on pyspur

I'd recommend pyspur if you seek

1) More AI-native features eg. Evals, RAG, or even UI decisions like seeing outputs directly on the canvas when running on the agent 2) Truly open-source Apache license 3) Python-based (in the sense that you can run and extend it via python)

On the other hand, n8n is 1) more mature for traditional workflows 2) offering overall more integrations (probably every single integration you can think of) 3) TypeScript based and runs on Node.js