LangChain - LangChain Blog

How to Build an Agent

Learn how to build an agent -- from choosing realistic task examples, to building the MVP to testing quality and safety, to deploying in production.

6 min read

How Exa built a Web Research Multi-Agent System with LangGraph and LangSmith

See how Exa used LangGraph and LangSmith to build a multi-agent web research system to process research queries

Case Studies 4 min read

How Captide agents running on LangGraph Platform compress investment research from days to seconds

See how Captide is using LangGraph Platform and LangSmith for their investment research and equity modeling agents.

Case Studies 4 min read

Benchmarking Multi-Agent Architectures

By Will Fu-Hinthorn In this blog, we explore a few common multi-agent architectures. We discuss both the motivations and constraints of different architectures. We benchmark

7 min read

LangGraph Release Week Recap

See what we released for LangGraph.js and Python over the past few weeks to speed up development workflows and gain more control at every level of your graph.

2 min read

Why do I need LangGraph Platform for agent deployment?

This blog dives into technical details for why agent deployment is difficult, and how we built a platform to solve those challenges (LangGraph Platform).

4 min read

How Webtoon Entertainment built agentic workflows with LangGraph to scale story understanding

See how Webtoon is transforming storytelling with agent workflows built on LangGraph for content discovery to help marketing, transation, and recommendation teams.

Case Studies 4 min read

Recap of Interrupt 2025: The AI Agent Conference by LangChain

Hear more about the product launches, keynote themes, and exciting news from our first-ever conference.

4 min read

LangGraph Platform is now Generally Available: Deploy & manage long-running, stateful Agents

LangGraph Platform, our infrastructure for deploying and managing agents at scale, is now generally available. Learn how to deploy

4 min read

LangSmith Incident on May 1, 2025

Requests to the US LangSmith API from both the web application and SDKs experienced an elevated error rate for 28 minutes on May 1, 2025

Engineering 2 min read

How Outshift by Cisco achieved a 10x productivity boost with their Agentic AI Platform Engineer

See how Cisco Outshift built an AI Platform Engineer to boost productivity 10x, taking tasks like setting up CI/CD pipelines from a week to under an hour.

Case Studies 5 min read

How DocentPro Built a Multi-Agent Travel Companion with LangGraph

See how DocentPro built a multi-agent system in LangGraph and traces and monitors interactions with LangSmith for their AI search itinerary agent

Case Studies 3 min read