Zep Memory vs Weaviate: Which Should You Choose in 2026?
Choosing between Zep Memory and Weaviate comes down to understanding what each tool does best. This comparison breaks down the key differences so you can make an informed decision based on your specific needs, not marketing claims.
By Toolradar Team · Last updated February 28, 2026 · Methodology
Short on time? Here's the quick answer
We've tested both tools. Here's who should pick what:
Zep Memory
Build personalized, fast, and reliable AI agents with comprehensive, evolving memory.
Best for you if:
- • You need ai agents features specifically
- • Provides comprehensive, evolving memory for AI agents.
- • Unifies chat history, business data, and user interactions into a temporal knowledge graph.
Weaviate
Open-source vector database with ML
Best for you if:
- • You want the higher-rated option (8.8/10 vs 0.0/10)
- • You need ai research features specifically
- • Open-source vector database
- • Run locally or in the cloud
| At a Glance |  Zep Memory |  Weaviate |
|---|---|---|
Price | Free + Paid | Free + Paid |
Best For | AI Agents | AI Research |
Rating | —/100 | 88/100 |
| Feature | Zep Memory | Weaviate |
|---|---|---|
| Pricing Model | Freemium | Freemium |
| Editorial Score | — | 88 |
| Community Rating | No ratings yet | No ratings yet |
| Total Reviews | 0 | 0 |
| Community Upvotes | 0 | 0 |
| Categories | AI AgentsVector Databases | AI ResearchVector Databases |
How Zep Memory and Weaviate Compare
Zep Memory
Build personalized, fast, and reliable AI agents with comprehensive, evolving memory.
Free tier available
Weaviate
Open-source vector database with ML
Free tier available · 88/100 score
Zep Memory is a ai agents tool. Weaviate is in ai research.
Who Should Use What?
On a budget?
Both are freemium. Compare plans on their websites.
Go with: Zep Memory
Want the highest-rated option?
Weaviate scores 88/100. Zep Memory is unrated.
Go with: Weaviate
Value user reviews?
Neither has user reviews yet.
Go with: Weaviate
3 Questions to Help You Decide
What's your budget?
Both are freemium. Pricing won't help you decide here.
What's your use case?
Zep Memory is a ai agents tool. Weaviate is in ai research. Pick the category that matches your needs.
How important are ratings?
Not all tools have been rated yet.
Key Takeaways
Weaviate
- Higher score: 88/100 vs unrated
- Free tier available
- Our pick for this comparison
Zep Memory
- Better fit for ai agents
The Bottom Line
Weaviate (88/100) is our pick.
Frequently Asked Questions
Is Zep Memory or Weaviate better?
Weaviate scores 88/100 in our evaluation. Both are freemium.
What are Zep Memory and Weaviate used for?
Zep Memory: Build personalized, fast, and reliable AI agents with comprehensive, evolving memory.. Weaviate: Open-source vector database with ML.
What does Zep Memory cost vs Weaviate?
Zep Memory is freemium (free tier + paid plans). Weaviate is freemium (free tier + paid plans). Visit their websites for detailed pricing.