Cognee vs Mem0: Which is Better in 2026?
Choosing between Cognee and Mem0? Both are popular ai agent memory tools. Below we compare them on pricing, free tiers, features, and pros & cons so you can pick the right fit for your stack.
Quick verdict
Both are solid ai agent memory options. Cognee is cheaper to start, but the right choice depends on the specific features and integrations you need.
Cognee vs Mem0 — Side by Side
| Cognee | Mem0 | |
|---|---|---|
| Category | AI Agent Memory | AI Agent Memory |
| Pricing | Free · paid from $1/mo | Free · paid from $19/mo |
| Starting price | Free tier available | Free tier available |
| Free tier | ||
| Rating | 4.4 | 4.6 |
| Best for | AI Agent Memory — knowledge-graph, open-source | AI Agent Memory — open-source, long-term-memory |
Pros & Cons
- Graph memory with evidence for every answer
- Runs locally without an LLM key
- Cheap usage-based cloud
- More moving parts than a plain memory API
- Graph extraction adds ingest latency
- Smaller ecosystem than Mem0
- Apache-2.0 with the largest community in the category
- Drops into an existing agent as a library
- Cheap managed tiers from $19/month
- Graph memory is Pro-only ($249/month) on the platform
- Benchmark figures are self-reported
- Retrieval caps on low tiers are tight
Key Features Compared
Cognee
- $5 per extra workspace / month
- Slack, Notion, Linear, Drive sources
- Code indexing
Mem0
- 50K add requests / month
- 5K retrieval requests / month
Choose Cognee if…
- You want a free tier to validate before paying.
- Budget is tight — paid plans start lower ($1/mo vs $19/mo).
- Graph memory with evidence for every answer
- Runs locally without an LLM key
Choose Mem0 if…
- You want a free tier to validate before paying.
- Apache-2.0 with the largest community in the category
- Drops into an existing agent as a library
- Cheap managed tiers from $19/month
Frequently Asked Questions
Is Cognee better than Mem0?⌄
Both are solid ai agent memory options. Cognee is cheaper to start, but the right choice depends on the specific features and integrations you need.
What is the difference between Cognee and Mem0?⌄
Cognee — Open-source (Apache-2.0) knowledge-graph memory for agents: turns documents, code and conversations into a graph you can query. Runs locally without an LLM key. Mem0 — Open-source (Apache-2.0) memory layer for AI agents: remembers users, sessions and agent state across conversations. Self-host or use the managed platform. Both are ai agent memory tools; the comparison table above breaks down pricing, free tiers, and what each is best for.
Cognee vs Mem0: which is cheaper?⌄
Cognee pricing: Free · paid from $1/mo. Mem0 pricing: Free · paid from $19/mo. Confirm current pricing on each tool's official site, as plans change.
Which is rated higher, Cognee or Mem0?⌄
In our catalog, Cognee rates 4.4 out of 5 and Mem0 rates 4.6 out of 5, so Mem0 has a slight edge on reviews.
See more options in our guide to the best ai agent memory tools for startups.
In-depth guideBest AI Agent Memory 2026: Mem0 vs Zep vs Cognee vs SupermemoryYour agent forgets everything when the chat ends. Two open-source memory layers and two managed services compared on how they store memory, what they cost for 1,000 users, and why every vendor claims the top benchmark score.Still not sure which to pick?
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