Certification
Certification: Build LLM Apps with LangChain.js, JavaScript, and OpenAI
Show the world you have AI skills—earn certification in building LLM apps with LangChain.js, JavaScript, and OpenAI. Gain hands-on experience designing intelligent applications and demonstrate your expertise in this rapidly evolving field.

The exam
Take the certification exam
Multiple-choice questions about the course. Pass with 70% or more and your certificate is issued at once, with a public page and an "Add to LinkedIn" button.
What the exam covers
2 questions from each of the 15 chapters of the course
20 multiple-choice questions, drawn fresh for every attempt. Pass with 70% or more.
- 01Introduction and app overview9:04
- 02What are embeddings6:16
- 03Supabase setup and splitting text6:08
- 04Splitting text II6:19
- 05Upload and standalone questions7:44
- 06Prompt templates6:37
- 07Adding the first chain4:03
- 08Retrieval6:34
- 09StringOutputParser and answer template7:54
- 10Serialising docs and RunnableSequence7:15
- 11RunnablePassthrough and challenge9:16
- 12Super challenge solution4:37
- 13Wiring the UI and memory5:40
- 14Wiring up memory6:24
- 15Performance checklist and outro5:36
Certification: Build LLM Apps with LangChain.js, JavaScript, and OpenAI empowers you to design and deploy advanced language model applications using industry-leading tools. Gain practical expertise that translates into increased productivity, a competitive advantage, and improved decision-making when building conversational AI. Enroll now to advance your skills and future-proof your career in AI application development.
This certification covers the following topics:
- Understanding LangChain.js
- Core Concepts of LangChain.js
- Conversational Retrieval over Documents
- LangChain Expression Language (LCEL)
- Integration with External Tools
- The Importance of Embeddings and Vector Stores
- Prompt Engineering
- Chaining Components
- Conversation Memory
- Optimizing LangChain.js Chatbot Performance
Jobs this certification suits
Our AI checked this certification against 500 jobs; these get the most out of it. Each job links to its learning path.