Agent and RAG builders connect models to knowledge sources and actions. Retrieval helps an application find relevant material; an agent may also use tools to complete a task. Visual builders and developer frameworks require different implementation skills, so choose the operating model first. Test document updates, source references, unanswered questions, and permissions for connected actions before judging a demonstration successful.
| Tool | Consider it for |
|---|---|
| Dify | Visual apps and agents with license-based self-hosting |
| Flowise | Self-maintained visual AI workflow builder |
| LangChain | Observe, evaluate, and deploy reliable AI agents |
| Langflow | Build AI agents and RAG apps visually |
| Voiceflow | Own every customer interaction |
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