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LangChain for LLM Application Development
DeepLearning.AI
DeepLearning.AI

LangChain for LLM Application Development

Build LLM apps with LangChain — chains, memory, agents, document Q&A — with Harrison Chase and Andrew Ng.
free
intermediate

2 hrs

course

About this course

LangChain is the go-to framework for building practical applications powered by large language models. In this course from DeepLearning.AI—created in collaboration with Andrew Ng and LangChain founder Harrison Chase—you'll learn how to move beyond chatbots and build real, production-ready LLM applications. Whether you're integrating AI into existing systems or exploring what's possible with language models, this course gives you the tools and patterns you need.

What you'll learn

  • How to use LangChain's core components—chains, prompts, and models—to structure LLM workflows
  • How to add memory to conversations so your applications remember context and maintain stateful interactions
  • How to build agents that can reason, plan, and take action using external tools and APIs
  • How to implement document question-answering systems that let users query custom data (PDFs, websites, databases)
  • How to evaluate and debug LLM applications for reliability and accuracy
  • Practical patterns for handling edge cases, managing tokens, and optimizing costs
  • How to integrate LangChain with real-world data sources and enterprise systems

Who this is for

If you're building with AI or planning to, this course is your practical foundation. You don't need deep ML expertise—just curiosity and some coding experience.

  • Software developers—master the framework to add AI capabilities to your apps and stand out in India's growing AI engineering market
  • Data scientists and ML engineers—learn the production layer between your models and users, bridging research to real applications

Prerequisites

Basic Python programming knowledge. You should be comfortable reading and writing simple functions. Machine learning experience is helpful but not required—the course teaches the LLM-specific concepts you need.

Why this matters for Indian learners

LangChain skills are in high demand across India's growing AI startup ecosystem and in tech companies expanding their AI products. Startups in Bangalore, Delhi, and Mumbai are actively hiring engineers who can build LLM applications—roles that often pay ₹15–35 LPA depending on experience. Multinational companies like Amazon, Google, and Microsoft are also scaling their AI teams in India and looking for developers with hands-on LangChain experience. By learning this framework now, you're positioning yourself for opportunities in AI engineering roles that are otherwise scarce in the Indian job market.

Frequently asked questions

Is this course really free?

Yes, completely free. No hidden charges, no paywall for certificates.

How long will it take to complete?

The course is about 2 hours of video content. You can complete it in a single afternoon, though we'd recommend spreading it over 2–3 sessions with hands-on practice between lessons. Budget another 3–5 hours if you want to build a small project using what you learn.

Will I get a certificate?

No formal certificate is offered, but you'll have a solid portfolio piece: a working LLM application you build during the course. That's often more valuable than a certificate when you're job hunting or pitching to clients.

At a glance

Provider
DeepLearning.AI
Level
Intermediate
Duration
2 hrs
Format
Self-paced
Language
En
Certificate
False
Price
free (0 )

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