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Mem0 vs Zep. Rows marked Differs have different values.

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Mem0

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Zep

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TypeStartupStartup
Categories
In one lineThe memory layer for AI apps and agents.Long-term memory for agents, built on temporal knowledge graphs.
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Events00
Pros
  • MetadataWidely adopted open-source memory layer with about 68k GitHub stars, under Apache-2.0.[1]
  • DocsOffers three deployment paths: a pip/npm library, a self-hosted Docker server with dashboard and auth, or a managed cloud.[1]
  • DocsThe free cloud tier allows 10k adds and 1k retrievals per month, or 50k adds and 10k retrievals with your own LLM key.[1]
  • MetadataBuilt on Graphiti, its Apache-2.0 temporal knowledge-graph engine with about 32k stars, which supports Neo4j, FalkorDB and Amazon Neptune.[1]
  • DocsCredits are charged only for ingested Episodes; retrieval, storage, users and threads cost 0 credits.[1]
  • DocsEnterprise offers SOC 2 Type II, a HIPAA BAA, bring-your-own-key encryption and bring-your-own-cloud deployment in your VPC.[1]
  • DocsThe free trial tier includes 10,000 credits per month for prototyping.[1]
Cons
  • DocsMem0's own README says its LoCoMo scores come from the managed platform, which has proprietary optimizations that the open-source SDK lacks.[1]
  • Independent testIts benchmark claims are disputed: Zep published a rebuttal of how Mem0 ran Zep, practitioners report trouble reproducing the LoCoMo numbers, and a full-context baseline scored about 72.9%.[1][2]
  • DocsGraph memory, SSO, audit logs and on-prem deployment are available only on the custom-priced plan.[1]
  • MetadataLarge maintenance backlog: about 437 open issues and 450 open PRs.[1]
  • DocsZep Community Edition was deprecated and moved to a legacy folder with no updates, so the full Zep service is now available only as cloud or BYOC.[1][2]
  • DocsPaid self-serve starts at $125/month (Flex), while SOC 2 Type II, the HIPAA BAA and audit logs are listed as Enterprise-only.[1]
  • DocsGraphiti needs an LLM with reliable structured output, and its README warns that other services may cause ingestion failures, especially with smaller models.[1]
  • User reportsThe Mem0/Zep LoCoMo dispute leaves neither vendor's headline benchmark score directly comparable.[1]
Best forTeams that want to add user-level memory to chat agents quickly, with an option to self-host.Agents that need temporally aware, graph-structured memory with enterprise compliance.
Watch out forBenchmark on your own data rather than trusting vendor LoCoMo numbers.If you need fully self-hosted memory, plan to build on Graphiti yourself.
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