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LangChain Blog

Explore AI’s future through LangChain's lens, with expert articles and guided tutorials for enthusiasts and experts alike.

February 22, 2025  23:23:08

Editor's note: this is a guest post from our friends at Onyx. As LangGraph has matured, we've seen more and more companies (Klarna, Replit, AppFolio, etc) start to use it as their agent framework of choice. We thought this was a great blog describing in detail

February 18, 2025  15:50:31

Today we're releasing the LangMem SDK, a library that helps your agents learn and improve through long-term memory.

It provides tooling to extract information from conversations, optimize agent behavior through prompt updates, and maintain long-term memory about behaviors, facts, and events.

You can use its core API with

February 12, 2025  15:00:55
Klarna's AI assistant is revolutionizing the personal shopping experience, including customer service and productivity. See how they used LangGraph and LangSmith to achieve 80% faster customer resolution times.
February 10, 2025  17:13:25
We explore how increasing the number of instructions and tools available to a single ReAct agent affects its performance, benchmarking models like claude-3.5-sonnet, gpt-4o, o1, and o3-mini across two domains of tasks.
February 10, 2025  16:41:48
Vizient's GenAI platform helps users manage data to query for information ranging from patient outcomes to clinical benchmarking. See how they used LangGraph and LangSmith for multi-agent system reliability and prompt management.
February 6, 2025  07:18:26
See how Infor is using the full LangChain product suite — including LangChain, LangGraph, and LangSmith — to drive enterprise automation for the cloud.
February 5, 2025  07:47:42
LinkedIn, Uber, Replit, and Elastic are just a few of the companies using LangGraph for real use cases in production. Learn how they did it below!
February 3, 2025  16:29:57
Join us this May at Interrupt, LangChain’s inaugural conference where the future of AI agents takes center stage.
January 29, 2025  16:20:22

Have you ever wanted to take advantage of LangGraph's core features like human-in-the-loop, persistence/memory, and streaming without having to explicitly define a graph?

We're excited to announce the release of the Functional API for LangGraph, available in Python and JavaScript.

The functional API allows you

January 28, 2025  16:29:38

By Krish Maniar and William Fu-Hinthorn

If you are interested in beta-testing more prompt optimization techniques, fill out interest form here.

When we write prompts, we attempt to communicate our intent for LLMs to apply on messy data, but it's hard to effectively communicate every nuance in one

January 22, 2025  17:54:26
Introducing a new way to run evals using LangSmith’s Pytest and Vitest/Jest integrations.
January 20, 2025  16:58:57

Captide’s platform transforms how investment research teams work with financial data. By automating the extraction of insights and metrics from regulatory filings and investor relations documents, analysts can create customized datasets and analyses with extreme efficiency. At the heart of this innovation is their commitment to NLP workflows

January 20, 2025  16:52:14

In the thriving world of e-commerce, where customer satisfaction can make or break a brand, Minimal is leveraging the LangChain ecosystem to transform how support issues are handled. Minimal AI agents are delivering 80%+ efficiency gains over a broad variety of E-commerce stores while improving customer satisfaction. This year, Minimal

January 14, 2025  17:07:02

Most AI apps today follow a familiar chat pattern ("chat" UX). Though easy to implement, they create unnecessary interaction overhead, limit the ability of us humans to scale ourselves, and fail to use the full potential of LLMs.

Over the past six months, we've been exploring

January 13, 2025  07:47:34
See how Acxiom debugged their agent application with LangSmith and built a scalable solution for their user base, complete with long-term memory, dynamic updates, and attribute-specific search.