Mem0
RAG & Memory · Free
Universal persistent memory layer for AI agents and assistants
At a glance
- Made by
- Mem0
- Korean
- None (English and a few others only)
- API
- Yes
- Available on
- API, CLI
- Open source
- Open-source SDK (license name not listed on the page)
- GitHub
- 67,145 stars · Apache-2.0
What is Mem0?
Mem0 adds an intelligent memory layer to AI assistants and agents so they remember user preferences and give personalized responses. When you add data, Mem0 extracts and updates memories, and it retrieves the key memories when interacting with users. It states that compressing conversation history into memories reduces tokens and latency. It offers an open-source SDK and a managed platform with proprietary optimizations.
- Multi-level memory at the user, session, and agent level
- Memory compression engine that compresses conversation history
- Entity linking and multi-signal (semantic, BM25, entity) search
- Time-aware retrieval (Temporal Reasoning)
- Python and Node.js SDKs and API
- SOC 2, HIPAA, and GDPR compliance; Kubernetes, private cloud, and air-gapped deployment
- MCP integration and CLI
Who uses Mem0 and for what
- Customer support chatbot
- Healthcare: care assistant that remembers patient history and allergies
- Education: tutor that remembers each student's learning style
Pricing
What you get for free — Yes (Hobby: 10,000 add requests and 1,000 retrievals per month)
| Plan | Price | Main limits |
|---|---|---|
| Hobby | $0/mo | 10,000 adds, 1,000 retrievals per month, 1 project |
| Starter | $19/mo | 50,000 adds, 5,000 retrievals per month, 1 project |
| Pro | $249/mo | 500,000 adds, 50,000 retrievals per month, unlimited projects, graph memory |
| Enterprise | Contact sales | Unlimited requests, on-premises deployment, SSO, SLA |
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying. · Official pricing page
AI tools similar to Mem0 (alternatives)
Mem0 vs. alternatives at a glance
| AI | Pricing | Combos on the map | Connected tools | Free | Cheapest monthly | Korean |
|---|---|---|---|---|---|---|
| Mem0 | Free | 0 | 4 | Yes | $19/mo | No |
| Cognee | Free | 0 | 4 | Yes | — | No |
| Letta (MemGPT) | Free + paid | 0 | 4 | Yes | $20/mo | No |
| supermemory | Free + paid | 0 | 4 | Yes | $19/mo | No |
| Zep | Free | 0 | 4 | Yes | $125/mo | No |
5 of these 5 tools have a free plan. Cheapest paid plan: Mem0 ($19/mo).
Combo and connection counts are based on the relationships recorded on AI Galaxy Map (2026-10-26); they are not a quality ranking.
Mem0 on AI Galaxy Map
- One of 21 AI tools in the RAG & Memory field.
- Connected to 4 other tools — #7 in its field.
Frequently asked questions
Can I use Mem0 for free?
Yes (Hobby: 10,000 add requests and 1,000 retrievals per month). Prices can change, so check the official site before paying.
What AI can I use instead of Mem0?
Tools that do the same job, such as Cognee, Letta (MemGPT), supermemory, Zep, are connected to it on the map.
Can I use Mem0 in Korean?
None (English and a few others only)
Sources (official pages)
Checked on the official pages on 2026-10-14. Prices and features can change, so check the official site again before paying.