LangMem

LangMem

LangChain
Hindsight

Hindsight

Vectorize
+
+

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About

LangMem is a lightweight, flexible Python SDK from LangChain that equips AI agents with long-term memory capabilities, enabling them to extract, store, update, and retrieve meaningful information from past interactions to become smarter and more personalized over time. It supports three memory types and offers both hot-path tools for real-time memory management and background consolidation for efficient updates beyond active sessions. Through a storage-agnostic core API, LangMem integrates seamlessly with any backend and offers native compatibility with LangGraph’s long-term memory store, while also allowing type-safe memory consolidation using schemas defined in Pydantic. Developers can incorporate memory tools into agents using simple primitives to enable seamless memory creation, retrieval, and prompt optimization within conversational flows.

About

Hindsight is an agent memory system built to create smarter AI agents that learn over time instead of starting every conversation from zero. Most agent memory systems focus on recalling conversation history, but Hindsight is focused on making agents learn, not just remember. It gives AI agents persistent long-term memory using biomimetic data structures, helping them retain facts, recall relevant context, and reflect on experience as part of reasoning. Hindsight is designed for agents that need to understand who a user is, what has been discussed, what preferences have emerged, what decisions were made, and how behavior should adapt across sessions. It provides three core operations: retain, recall, and reflect. Retain stores new information, recall retrieves the right memories when needed, and reflect helps agents synthesize observations, form mental models, and learn from prior interactions.

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Platforms Supported

Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook

Audience

AI developers and data scientists who build LangChain-based agents and want to implement long-term, structured memory to enhance personalization, coherence, and conversational depth

Audience

AI agent developers and product teams who need long-term memory infrastructure that lets agents retain context, recall relevant information, reflect on experience, and learn across sessions

Support

Phone Support
24/7 Live Support
Online

Support

Phone Support
24/7 Live Support
Online

API

Offers API

API

Offers API

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version
Free Trial

Pricing

Free
Free Version
Free Trial

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

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Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation
Webinars
Live Online
In Person

Training

Documentation
Webinars
Live Online
In Person

Company Information

LangChain
Founded: 2022
United States
langchain-ai.github.io/langmem/

Company Information

Vectorize
United States
hindsight.vectorize.io

Alternatives

Alternatives

CMEM Cloud

CMEM Cloud

cmem.ai
MemClaw

MemClaw

Caura AI
MemMachine

MemMachine

MemVerge
LangGraph

LangGraph

LangChain

Categories

Categories

Integrations

LangGraph
PydanticAI
Python
Amazon Bedrock AgentCore
ChatGPT
Dify
Go
LiteLLM
LlamaIndex
Model Context Protocol (MCP)
NVIDIA NemoClaw
OpenAI Agents SDK
OpenClaw
OpenCode
Paperclip
Perplexity
Superagent
TypeScript
Vapi AI
Vercel AI SDK

Integrations

LangGraph
PydanticAI
Python
Amazon Bedrock AgentCore
ChatGPT
Dify
Go
LiteLLM
LlamaIndex
Model Context Protocol (MCP)
NVIDIA NemoClaw
OpenAI Agents SDK
OpenClaw
OpenCode
Paperclip
Perplexity
Superagent
TypeScript
Vapi AI
Vercel AI SDK
Claim LangMem and update features and information
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