Zep Memory

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Build personalized, fast, and reliable AI agents with comprehensive, evolving memory.

From $25/mo, billed monthly (free plan available)

Freemium Data & Databases Developer Tools AI Agents

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Reviews on G2

1 review tracked

The Bottom Line

Updated Oct 13, 2026

Price: From $25/mo, billed monthly (free plan available). Compare plans

Key facts

Provides comprehensive, evolving memory for AI agents.
Unifies chat history, business data, and user interactions into a temporal knowledge graph.
Delivers fast, token-efficient, and accurate context to LLMs for personalized agents.

Pros

Significantly improves AI agent accuracy and personalization by providing rich, evolving context.
Reduces inference costs and response latency by delivering token-efficient and relevant context.
Integrates diverse data sources (chat, business data, user behavior) into a single knowledge graph.
Designed for real-time applications with extremely low retrieval latency (<200ms).
Supports custom graph ontologies for domain-specific memory and improved relevance.

Cons

No explicit free tier mentioned, suggesting it's a paid solution.
Requires integration and setup to connect various data sources.
Complexity of managing and defining custom graph ontologies might require some expertise.

What is Zep Memory?

Zep is an AI agent memory platform that provides end-to-end context engineering for building intelligent agents. It addresses the common problem of AI agents failing due to a lack of relevant context by assembling information from chat history, business data, and user behavior into a unified, temporal knowledge graph. This allows agents to have a holistic and continuously updated understanding of users and their interactions. The platform is designed for developers and organizations building AI agents, including conversational AI, voice agents, and live support systems. It integrates with any agent framework and offers low-latency retrieval, making it suitable for real-time applications. Zep aims to improve agent accuracy, reduce inference costs, and lower response latency by providing agents with rich, personalized, and evolving context, moving beyond simple chat memory or static RAG approaches. Zep's core functionality involves ingesting diverse data sources, automatically extracting entities and relationships to construct a dynamic knowledge graph, and then assembling relevant, token-efficient context for Large Language Models (LLMs). It also supports custom graph ontologies to tailor memory to specific business domains, ensuring high precision and relevance.

Available on: Web

Data compiled by Toolradar Pricing checked Oct 13, 2026 · How we evaluate

Source getzep.com

Ratings Across the Web

4.5 (1 reviews)

Zep Memory holds an aggregate rating of 4.5 out of 5 from 1 reviews across G2, last checked March 19, 2026.

G2 1 reviews

4.5/5

Ratings aggregated from independent review platforms. Learn more

Preview

Key Features

End-to-End Context Engineering
Temporal Knowledge Graph Construction with Fact Invalidation
Unified Data Ingestion (Chat, Documents, JSON, CRM, App Events)
Sub-200ms P95 Retrieval Latency
Customizable Context Blocks for LLMs
Persistent Context with Provenance Tracking
Custom Graph Ontologies (Pydantic, Zod)
Entity Extraction and Relationship Building

Pricing Plans

Pricing checked Oct 13, 2026. Source: getzep.com/pricing, read Oct 13, 2026

Zep Memory plans and prices, checked October 2026
Plan	Price	Details
Free	Free	1,000 episodes a month Low rate limits Lower priority episode processing
Flex	$25 / month	20,000 credits included Auto-topup at 20% (+20,000) 600 requests per minute +3 more Show less 5 Projects 10 custom entity & edge types Unlimited memories, retrieval & users
Flex Plus	$475 / month	300,000 credits included Auto-topup at 20% (+100,000) 1,000 requests per minute +6 more Show less 5 Projects 20 custom entity & edge types Custom extraction instructions Webhooks API logs (7 days) Unlimited memories, retrieval & users
Enterprise	Contact Sales	SOC 2 Type II certification & HIPAA BAA Custom limits & guaranteed rate limits Slack support & dedicated account manager +2 more Show less API & audit logs, SLA guarantees Flexible Deployment (Managed Enterprise, BYOK, BYOM, BYOC)

Calculate your cost View full pricing

Is Zep Memory worth the price?

Good value

Zep Memory's pricing feels fair, especially with a generous Free tier offering 1,000 episodes a month.

The jump to Flex at $25/month for 20,000 credits is reasonable for growing projects, while Flex Plus at $475/month provides substantial scaling. This structure is best for developers and small to medium-sized teams building AI agents.

Full Zep Memory pricing: every plan, hidden costs and alternatives

How Zep Memory's pricing compares

At $25/mo, billed monthly, Zep Memory is the most affordable of its 4 comparable direct competitors.

Zep Memory

$25

$39

$45

$126

$250

Not ranked, different unit or currency: Pinecone $20/mo flat, whole organisation, billed monthly.

Entry paid plan, monthly price, billed monthly. Pricing checked Oct 13, 2026.

Zep Memory by the numbers

Toolradar data: Zep Memory's entry paid plan ($25/mo, billed monthly) ranks #59 of 155 (joint) for price among the Data & Databases tools with a verified entry price and no stated unit, where the median is $30/mo. As of Oct 2026.

Zep Memory compared with 565 Data & Databases tools on Toolradar, as of Oct 2026
Metric	Zep Memory	Peer median	Position (1 is best)
Entry paid plan	$25/mo, billed monthly	$30/mo	#59 of 155 (joint) tools with no stated price unit, verified price
Free plan	Yes	66% have one	n/a
Listed as an alternative to	6 tools	2	#128 of 565 (joint)
Compare-page visits, last 30 days	30 visits	35	#86 of 143 (joint) tools with 20+ compare-page visits

Each position is counted among the tools that have data for that row, as noted under it. A lower entry price ranks higher; prices are read on vendor pages and compared only with tools priced on the same basis. All Data & Databases data · How we compute this. Advertising and placement fees are not inputs to any position. Visit counts include visits from every source.

Cite this: Toolradar, “Zep Memory by the numbers”, Oct 2026.

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Most buyers shortlist 2 or 3 tools before committing. Pull a side-by-side comparison or browse the full alternatives shortlist below.

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Zep Memory FAQ

How does Zep handle evolving user information and fact invalidation over time?

Zep utilizes a temporal context graph that updates with every interaction. When facts change, old ones are automatically invalidated, ensuring the agent always has the most current and accurate context.

What types of data sources can Zep ingest to build its unified context graph?

Zep can ingest a variety of data sources including chat messages, JSON business data, CRM records, application events, and documents. It integrates these into a single, evolving context graph.

How does Zep ensure low latency for real-time applications like voice agents?

Zep is optimized for performance, achieving P95 retrieval latency of less than 200ms. This speed is crucial for real-time applications such as voice agents, video agents, and live support, preventing latency issues.

Can I customize the context blocks that Zep provides to my LLM?

Yes, Zep allows for customizable context blocks. You can define templates using a simple API to format the retrieved context, including user profiles, relevant facts, and entities, optimized for your specific LLM needs.

How does Zep compare to other agent memory solutions in terms of accuracy and efficiency?

Zep leads on the LoCoMo benchmark for single-shot retrieval, demonstrating up to 80.32% accuracy at 189ms. It offers configurations to optimize for accuracy, latency, and token efficiency, outperforming traditional chat memory or static RAG approaches.

Does Zep support defining custom graph ontologies for specific business domains?

Yes, Zep allows users to easily define custom graph ontologies to improve the precision and relevance of agent memory. This customization can be done using familiar tools like Pydantic and Zod.

How does Zep Memory pricing compare with other Data & Databases tools?

Zep Memory's entry paid plan ($25/mo, billed monthly) ranks #59 of 155 (joint) for price among the Data & Databases tools with a verified entry price and no stated unit, where the median is $30/mo. Prices are read on each vendor's own pricing page and compared only with tools priced on the same basis. Source: Toolradar, Oct 2026.

Source: getzep.com

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