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features
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support

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Description

LangMem is a versatile and lightweight Python SDK developed by LangChain that empowers AI agents by providing them with the ability to maintain long-term memory. This enables these agents to capture, store, modify, and access significant information from previous interactions, allowing them to enhance their intelligence and personalization over time. The SDK features three distinct types of memory and includes tools for immediate memory management as well as background processes for efficient updates outside of active user sessions. With its storage-agnostic core API, LangMem can integrate effortlessly with various backends, and it boasts native support for LangGraph’s long-term memory store, facilitating type-safe memory consolidation through Pydantic-defined schemas. Developers can easily implement memory functionalities into their agents using straightforward primitives, which allows for smooth memory creation, retrieval, and prompt optimization during conversational interactions. This flexibility and ease of use make LangMem a valuable tool for enhancing the capability of AI-driven applications.

Description

Weaviate is an open-source vector database built for the AI era, giving teams one platform for vector search, retrieval-augmented generation, and agent memory. Store data objects together with embeddings from your preferred machine learning models and scale effortlessly to billions of objects. Import your own vectors or rely on Weaviate's built-in vectorization, then search across vector, keyword, and hybrid methods to get highly relevant results, even when filters are applied. By connecting to today's leading large language models, Weaviate helps you build grounded search and question-answering over your own data. The platform reaches well beyond storage: its Query Agent translates plain-language questions into accurate queries with citations, Engram delivers managed long-term memory for AI agents, and Weaviate Embeddings removes the work of running your own embedding pipeline. Available as self-hosted open source or fully managed Weaviate Cloud across AWS, GCP, and Azure, backed by SOC 2 Type II, native multi-tenancy, replication, and role-based access control. From semantic search to recommendation to fully agentic applications, Weaviate is the foundation to ship AI products faster.

API Access

Has API Yes 

API Access

Has API Yes 

Screenshots View All

Screenshots View All

Integrations

AWS Marketplace No 
Airbyte No 
Amazon Web Services (AWS) No 
Anyscale No 
Azure OpenAI Service No 
Claude Code No 
Composio No 
Confluent No 
Contextual AI No 
Dify No 
DocumentDB for VS Code No 
FriendliAI No 
GitHub Copilot No 
Haystack No 
Hugging Face No 
IBM API Connect No 
LlamaIndex No 
Snowflake No 
Superlinked No 
n8n No 

Integrations

AWS Marketplace Yes 
Airbyte Yes 
Amazon Web Services (AWS) Yes 
Anyscale Yes 
Azure OpenAI Service Yes 
Claude Code Yes 
Composio Yes 
Confluent Yes 
Contextual AI Yes 
Dify Yes 
DocumentDB for VS Code Yes 
FriendliAI Yes 
GitHub Copilot Yes 
Haystack Yes 
Hugging Face Yes 
IBM API Connect Yes 
LlamaIndex Yes 
Snowflake Yes 
Superlinked Yes 
n8n Yes 

Pricing Details

No price information available.
Free Trial No 
Free Version No 

Pricing Details

Free
Open source (free); free Weaviate Cloud tier; paid Cloud plans from $45/mo.
Free Trial No 
Free Version Yes 

Deployment

Web-Based Yes 
On-Premises No 
iPhone App No 
iPad App No 
Android App No 
Windows No 
Mac No 
Linux No 
Chromebook No 

Deployment

Web-Based Yes 
On-Premises Yes 
iPhone App No 
iPad App No 
Android App No 
Windows Yes 
Mac Yes 
Linux Yes 
Chromebook No 

Customer Support

Business Hours Yes 
Live Rep (24/7) No 
Online Support Yes 

Customer Support

Business Hours No 
Live Rep (24/7) Yes 
Online Support Yes 

Types of Training

Training Docs Yes 
Webinars No 
Live Training (Online) No 
In Person Yes 

Types of Training

Training Docs Yes 
Webinars Yes 
Live Training (Online) No 
In Person No 

Vendor Details

Company Name

LangChain

Founded

2022

Country

United States

Website

langchain-ai.github.io/langmem/

Vendor Details

Company Name

Weaviate

Founded

2019

Country

The Netherlands

Website

weaviate.io

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