LangMem

LangMem

LangChain
PRISM

PRISM

Block Convey
+
+

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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

PRISM is an AI agent observability and evaluation platform for teams building and operating AI applications. It traces model calls, tools, retrieval, sessions, and outcomes, then helps teams test scenarios, evaluate results, identify recurring failures, and validate improvements. Teams can connect applications through its SDK and API, OpenTelemetry, and supported frameworks such as LangChain.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

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 developers and teams building, testing, and operating AI applications.

Support

Phone Support Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Not Supported
Free Trial Not Supported

Pricing

$20/month
Free is $0/month. Builder is $20/month, Growth is $50/month, and Managed is $300/month. Enterprise pricing is custom. Purchased-credit top-ups have a minimum of 100 credits for $10.
Free Version Supported
Free Trial Not Supported

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

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 Supported
Webinars Not Supported
Live Online Not Supported
In Person Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

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

Company Information

Block Convey
Founded: 2023
United States
blockconvey.com/prism

Alternatives

Alternatives

Arize Phoenix

Arize Phoenix

Arize AI
Membase

Membase

Unibase
LangGraph

LangGraph

LangChain

Categories

AI Memory Layers Supported

Categories

Integrations

Anthropic Not Supported
LangChain Not Supported
LangGraph Supported
OpenAI Not Supported
OpenTelemetry Not Supported
PydanticAI Supported
Python Supported

Integrations

Anthropic Supported
LangChain Supported
LangGraph Not Supported
OpenAI Supported
OpenTelemetry Supported
PydanticAI Not Supported
Python Not Supported
Claim LangMem and update features and information
Claim LangMem and update features and information
Claim PRISM and update features and information
Claim PRISM and update features and information