Dify is an open-source platform (144,000+ GitHub stars as of 2026) for building production-ready AI applications, combining visual workflow orchestration, RAG pipeline construction, an agent framework, multi-model management, and LLMOps observability in a single interface. It supports hundreds of LLM providers including OpenAI, Anthropic, Llama, and Azure. Non-technical users can build apps without code; developers can extend via API and custom plugins. It can be self-hosted for free or used via Dify Cloud. The company is incorporated as LangGenius, Inc. Key features: - Visual agentic workflow builder with drag-and-drop node editor - Built-in RAG pipeline with document ingestion, chunking, and retrieval - Multi-model management: switch between 100+ LLM providers - LLMOps observability: prompt versioning, usage logs, and performance metrics - One-click API publishing for any workflow or agent - Self-hostable via Docker (free, no seat limits)
Sandbox (Free): 200 message credits one-time, 1 workspace, 5 apps. Professional: $59/month, 5,000 credits/month, 50 apps. Team: $159/month, 10,000 credits/month, 50 members. Enterprise: custom. Annual billing saves 17%.