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Head to head · 2026

Mem0 vs Neo4j

Pricing, free plans, ratings, features, pros and cons, side by side. Where one comes out ahead, we mark it.

Mem0

Open-source memory layer that lets AI agents retain and recall context across sessions

4.2$19/mo

Visit Mem0 (opens Mem0 in a new tab)

Neo4j

Graph database and knowledge-graph platform positioned as a knowledge layer for AI, with GraphRAG for grounded…

4.5Free

Visit Neo4j (opens Neo4j in a new tab)

Who comes out ahead

Based only on the facts in our directory. The right pick still depends on the job you need done.

  • Lower starting price

    Not comparable

    Not comparable: Neo4j does not list a price

  • Free plan

    Tie

    Both have one

  • Higher rating

    Neo4j

    4.2 against 4.5

  • Same job?

    Yes

    Both are AI Infrastructure & Agent Tooling tools

Side by side

Compared onMem0Neo4j
Our rating4.24.5Better
Starts at$19/moFree
Free planYesYes
CategoryAI Infrastructure & Agent ToolingAI Infrastructure & Agent Tooling
PlansFrom $19/moFree
Key features
  • Selective memory extraction instead of full conversation-history storage
  • Open-source core with a hosted cloud API option
  • Cross-session personalization for AI assistants and agents
  • Integrations with LangGraph, CrewAI, and AWS Agent SDK
  • Browser extension for capturing memories across ChatGPT, Perplexity, and Claude
  • GraphRAG for grounding LLM answers in a knowledge graph
  • Aura Agent for building context-aware agents
  • Vector search alongside graph queries
  • Model Context Protocol server and AI framework integrations
  • Managed AuraDB on AWS, Azure and Google Cloud
Pros
  • Open-source core gives developers a self-hosted option alongside the managed API
  • Backing from Y Combinator, Peak XV, and the GitHub Fund signals strong investor confidence
  • Default memory provider status on AWS's Agent SDK gives it built-in distribution
  • Free AuraDB tier with no credit card
  • Relationships make AI answers traceable to source data
  • Runs managed or self-hosted
Cons
  • Selective-memory approach can miss context a full-window approach would have caught
  • Pricing jumps sharply between the Growth ($79) and Pro ($249) tiers
  • Young company (2024) still proving long-term retention accuracy at scale
  • Hourly per-GB pricing needs monitoring
  • Graph modeling and the Cypher query language take time to learn
  • Accuracy and ROI figures are the vendor's own
CompanyMem0, founded 2024Neo4j

Prices come from each vendor's pricing page, last checked 20261012. Check the vendor before you buy.

FAQ

Questions people ask

Is Mem0 better than Neo4j?

In our reviews Mem0 scores 4.2 and Neo4j scores 4.5. The better pick depends on the job. Mem0: Open-source memory layer that lets AI agents retain and recall context across sessions. Neo4j: Graph database and knowledge-graph platform positioned as a knowledge layer for AI, with GraphRAG for grounded LLM answers, Aura Agent for building context-aware agents, vector search and MCP support.

Which is cheaper, Mem0 or Neo4j?

Mem0: from $19/mo. Neo4j: free.

Do Mem0 and Neo4j have free plans?

Yes, both have a free plan.

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