Building Generative AI Applications with LangChain and RAG — PickAClass
⏱ 2h 36m 📚 26 lessons

Building Generative AI Applications with LangChain and RAG

Learn to construct and deploy practical Retrieval-Augmented Generation applications using LangChain and modern vector databases.

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About this course

Generative AI is transforming how we interact with data, but generic models often lack the specific context needed for real-world tasks. Building Retrieval-Augmented Generation (RAG) applications allows you to connect powerful language models to your own private data sources securely and efficiently.\n\nThis text-based course guides you step-by-step through the process of designing, coding, and refining a complete RAG application. You will transition from understanding core artificial intelligence concepts to implementing a fully functional, context-aware AI assistant using the popular LangChain framework.\n\nWhat you'll learn:\n- Understand the core principles of Generative AI, embeddings, and vector search\n- Configure LangChain components to manage prompts, models, and memory\n- Load, chunk, and index external documents into a modern vector database\n- Construct a robust Retrieval-Augmented Generation (RAG) pipeline\n- Apply prompt engineering techniques to improve model accuracy and reduce hallucinations\n- Evaluate the performance of your RAG application using written test scenarios\n\nYou will start with foundational terminology and the mechanics of large language models, then progress through hands-on written tutorials that show you how to write clean, modular Python code using LangChain. Each section includes conceptual explanations and structured code walk-throughs to ensure you understand the logic behind every line.\n\nThis course is designed for software developers, data enthusiasts, and tech professionals who are new to Generative AI development. A basic understanding of Python is recommended, but no prior experience with AI frameworks or vector databases is required.\n\nStart reading today to build your first intelligent, data-connected AI application.

Course contents

What you'll get

  • 📜 Certificate of completion
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  • 💬 Personal AI tutor
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  • 📱 Phone or computer
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  • 💸 14-day refund
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  • ⚡ Short & focused
    2h 36m of practical content

Certificate of completion

Every course you complete on PickAClass issues a credential like this — original, with its own code, verifiable by URL, and detailed about what was actually demonstrated.

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PickAClass
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Certificate of Mastery
This certifies that
Name Surname
has successfully demonstrated mastery of
Building Generative AI Applications with LangChain and RAG
Skills demonstrated
✓
Behavioral pattern analysis
Foundational
1.2 hrs
✓
Decision-architecture frameworks
Proficient
1.4 hrs
✓
A/B test design
Proficient
1.7 hrs
✓
Behavioral copywriting
Advanced
1.9 hrs
P
PickAClass — Name Surname
Building Generative AI Applications with LangChain and RAG
Page 2 of 2
Performance detail
Coursework summary
Lessons completed 14 / 14
Practice questions 26 / 28
Assignments submitted 4 (avg 4.5 / 5)
Capstone project Reviewed — 4.6 / 5
Total practice 6.2 hrs
Performance benchmark
Cohort rank Top 12% of 1,625
Time to completion 11 days (median: 22)
Mastery score 91 / 100
Practice-question score 94%
Skill verification Verified Skill Path
Verify this credential
pickaclass.com/certificates/PCC-2026-X4F7-AP19
Issued under the academic standards of PickAClass. Skill levels reflect assessed performance against the course's competency rubric. This is an original credential of this platform.

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What do I need to take this course? +

Just a phone or computer with internet. No installs, no special hardware.

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By card via Stripe. We don’t store card details — Stripe handles them securely.

Can I get a refund? +

Yes — full refund within 14 days, no questions asked.

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Forever. Once you purchase, the course is yours to revisit anytime.

Will I get a certificate? +

Yes. On completion you'll receive a certificate you can add to your LinkedIn profile.

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