These tools competes with

ZepvsCognee

Long-term memory and session management for AI assistants versus OSS graph-based memory layer for AI agents

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Choose Zep when…

  • You're building a conversational AI assistant that needs session continuity
  • You need structured fact and entity extraction from conversation history
  • You want temporal memory — your AI knowing when it learned something

Choose Cognee when…

  • You want graph-shaped agent memory over flat key-value stores
  • You ingest unstructured corpora and need typed entity extraction
  • You want OSS with a managed cloud option

Side-by-side comparison

Field
Zep
Cognee
Category
Memory & Persistence
Memory & Persistence
Type
Open Source
Open Source
Free Tier
✓ Yes
✓ Yes
Pricing Plans
Cloud: $99/mo
OSS: FreeCloud: From $20/mo
GitHub Stars
4,000
Health
60 Slowing
85 Active

Zep

Memory and session management platform for AI assistants. Automatically extracts facts, preferences, and entities from conversations and surfaces them as structured memory. Supports temporal reasoning — knowing what was discussed last week versus now.

Cognee

OSS knowledge-graph-first memory engine for AI agents. Builds a typed graph from unstructured data and exposes graph-traversal retrieval to agents. Rising fast in 2026 alongside Mem0 and Zep.

Shared Connections1 tools both integrate with

Only Zep (5)

LangGraphLangChainOpenAI APICogneeGraphiti

Only Cognee (1)

Zep

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See how Zep and Cognee fit into the bigger picture — 235 tools, 543 relationships, all mapped.

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