Mem0
A universal memory layer that gives AI agents long-term, personalized recall
Mem0 · Infrastructure
Launched 2024
Quick Answer
Mem0 is a universal memory layer that gives ai agents long-term, personalized recall, made by Mem0. It offers a free tier with paid upgrades. Key uses: Persistent agent memory, Personalized chatbots, Customer support context.
Last updated:
Users
30K+ GitHub stars; adopted by thousands of AI developers
Valuation
~$24M raised (Series A, 2025)
What is Mem0?
Mem0 (pronounced 'mem-zero') is an open-source memory layer for AI applications that lets agents and assistants remember user preferences, past interactions, and context across sessions. It extracts salient facts from conversations, stores them in a vector + graph store, and retrieves the most relevant memories at inference time — reducing token costs and delivering personalized, stateful experiences. Available as an open-source library and a managed cloud platform.
What's new in Mem0 in 2026?
Mem0 crossed 30K+ GitHub stars and raised $24M (Series A, 2025) led by Basis Set/Peak XV; released OpenMemory MCP for local, portable memory across MCP-compatible clients; benchmarks show large accuracy gains and token savings vs full-context baselines
How much does Mem0 cost?
Open-Source
$0
- Full memory library
- Self-hosted
- Vector + graph memory
- Apache 2.0 license
Starter (Cloud)
$19/mo
- Managed memory API
- Hosted vector store
- Higher rate limits
- Dashboard
Pro (Cloud)
Usage-based
- Scaled memory operations
- Graph memory
- SSO
- Priority support
What can you do with Mem0?
- Persistent agent memory
- Personalized chatbots
- Customer support context
- AI companions
- Reducing context window costs
Pros
- Open-source with strong adoption
- Cuts token usage vs stuffing history
- Vector + graph hybrid memory
- Simple SDK (add/search memories)
- Works with any LLM
Cons
- Managed platform is usage-priced
- Memory extraction can miss nuance
- Adds architectural complexity
- Relatively young project
What are the best alternatives to Mem0?
Compare Mem0 Head-to-Head
Frequently Asked Questions about Mem0
How much does Mem0 cost?
Mem0 pricing: Open-Source at $0; Starter (Cloud) at $19/mo; Pro (Cloud) at Usage-based.
Is Mem0 free?
Mem0 offers a free tier with limited usage. Paid plans unlock additional features.
What is Mem0 used for?
Mem0 is used for: Persistent agent memory, Personalized chatbots, Customer support context, AI companions, Reducing context window costs.
What are the best alternatives to Mem0?
Top alternatives to Mem0 include Pinecone.
What platforms does Mem0 support?
Mem0 is available on: Python SDK, Node SDK, REST API, Managed Cloud, Self-hosted.
Details
Platforms
Integrations
Ideal For
- Agent developers
- Chatbot builders
- AI product teams
- Companies personalizing at scale