LlamaIndex vs Zep Memory: Pricing and Ratings Compared (2026)
Entry prices and free plans as read on each vendor's pricing page, and user ratings as published on review sites, for LlamaIndex and Zep Memory side by side. This page compares data; it is not a hands-on review.
On the data: On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
Short on time? Here's the quick answer
Based on published vendor pricing and features and on public review data, here's who should pick what:
LlamaIndex
Data framework for LLM applications
Best for you if:
- • You want great for RAG
Zep Memory
Build personalized, fast, and reliable AI agents with comprehensive, evolving memory.
Best for you if:
- • You want significantly improves AI agent accuracy and personalization by providing rich, evolving context
| At a Glance | LlamaIndex | Zep Memory |
|---|---|---|
Starts at | Free plan | Free plan, paid from $25/mo, billed monthly Flex plan |
Category | Developer Tools AI Assistants | Data & Databases Developer Tools |
Rating | n/a | n/a |
Free plan | Yes | Yes |
Choose LlamaIndex or Zep Memory?
Choose LlamaIndex if
- You want great for RAG
- You want easy data integration
- You work in developer tools, not data & databases
Choose Zep Memory if
- You want significantly improves AI agent accuracy and personalization by providing rich, evolving context
- You want reduces inference costs and response latency by delivering token-efficient and relevant context
- You work in data & databases, not developer tools
In-Depth Analysis
LlamaIndex
Data framework for LLM applications
LlamaIndex offers a very generous open-source tier, providing a full LLM framework and RAG capabilities for free.
Strengths
- Pro: Great for RAG
- Pro: Easy data integration
- Pro: Good documentation
Weaknesses
- Con: Learning curve
- Con: Can be slow
Key features
Zep Memory
Build personalized, fast, and reliable AI agents with comprehensive, evolving memory.
Zep Memory's pricing feels fair, especially with a generous Free tier offering 1,000 episodes a month.
Strengths
- Pro: Significantly improves AI agent accuracy and personalization by providing rich, evolving context.
- Pro: Reduces inference costs and response latency by delivering token-efficient and relevant context.
- Pro: Integrates diverse data sources (chat, business data, user behavior) into a single knowledge graph.
- Pro: Designed for real-time applications with extremely low retrieval latency (<200ms).
- Pro: Supports custom graph ontologies for domain-specific memory and improved relevance.
Weaknesses
- Con: No explicit free tier mentioned, suggesting it's a paid solution.
- Con: Requires integration and setup to connect various data sources.
- Con: Complexity of managing and defining custom graph ontologies might require some expertise.
Key features
Plans and prices: LlamaIndex vs Zep Memory
| Tool | Plans and prices | Source |
|---|---|---|
| LlamaIndex |
| llamaindex.ai/pricing read Oct 12, 2026 |
| Zep Memory |
| getzep.com/pricing read Oct 13, 2026 |
Prices as read on each vendor's own pricing page on the date shown. Plans are listed per tool and are not matched against the other tool's plans: a plan name or price in one column says nothing about the same row in the other. Details on LlamaIndex pricing and Zep Memory pricing.
Key Takeaways
LlamaIndex
- Choose if you want data framework for LLM applications
Zep Memory
- Choose if you want build personalized, fast, and reliable AI agents with comprehensive, evolving memory
What the data shows
On the data below the two are close or not directly comparable, so we do not name a winner for this pair.
- Zep Memory starts at $25/mo, billed monthly; LlamaIndex has no public paid plan price on file.
- Both have a free plan.
Criteria: user rating (only above 20 reviews on both sides, gap of 0.2 or more), entry price (only on the same billing basis), free plan. How we rate
Frequently Asked Questions
How do LlamaIndex and Zep Memory compare in 2026?
On the data below the two are close or not directly comparable, so we do not name a winner for this pair. Zep Memory starts at $25/mo, billed monthly; LlamaIndex has no public paid plan price on file. Both have a free plan.
What are LlamaIndex and Zep Memory used for?
LlamaIndex: Data framework for LLM applications. Zep Memory: Build personalized, fast, and reliable AI agents with comprehensive, evolving memory.
What does LlamaIndex cost vs Zep Memory?
LlamaIndex has no public paid-plan price on file. Zep Memory's cheapest paid plan is Flex at $25/mo, billed monthly; it also has a free plan. Prices read on the vendors' pricing pages, latest check Oct 13, 2026.
What's the main difference between LlamaIndex and Zep Memory?
LlamaIndex's main strength: great for RAG. Zep Memory's main strength: significantly improves AI agent accuracy and personalization by providing rich, evolving context.