MemOS is free, with no paid plan attached. RAGFlow is free, with no paid plan attached. Both are listed under Agent Memory & RAG-as-a-Service, so this is a like-for-like comparison. Neither is ranked above the other — Flocci carries no sponsored placement.
MemOS is free, with no paid plan attached and is listed for memory operating system for LLM agents with hybrid retrieval and persistent memory. RAGFlow is free, with no paid plan attached and is listed for open-source RAG engine with deep document parsing and agent workflows. Both sit in Agent Memory & RAG-as-a-Service.
Neither — MemOS and RAGFlow are both free, so the choice comes down to capability rather than cost. Both entries list what they uniquely do above.
Choose MemOS if you need memory operating system for LLM agents with hybrid retrieval and persistent memory; choose RAGFlow if you need open-source RAG engine with deep document parsing and agent workflows. Flocci AI Tools does not rank one above the other — it shows both feature sets side by side and lets the requirement decide.
| MemOS | RAGFlow | |
|---|---|---|
| Pricing tier | Free | Free |
| Free to start | Yes | Yes |
| Category | AI Agents & Automation | AI Agents & Automation |
| Type | Agent Memory & RAG-as-a-Service | Agent Memory & RAG-as-a-Service |
| Listed capabilities |
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| Tags | memos memory os, agent memory, llm long term memory, open source memory for agents, memtensor memos | ragflow, open source rag engine, deep document understanding rag, self hosted rag |
| Website | memos.openmem.net | ragflow.io |
| Full page | MemOS details → | RAGFlow details → |
| Alternatives | MemOS alternatives → | RAGFlow alternatives → |