Lecture 6: F-Strings, System & User Messages Explained | Build Your First LLM App (Hindi)

Lecture 6 में आपका स्वागत है!
इस क्लास में हमने Generative AI और LangChain के अंदर सबसे ज़रूरी concepts को आसान भाषा में सीखा—F-string, system message, user message, input/output message, और LLM model invocation.
इस lecture में आप एक पूरा LLM-based छोटा application भी बनाएँगे!
(Reference: Live class transcript

Gen AI - Hindi

)

⭐ इस Lecture में क्या-क्या सीखेंगे?

🔹 What is System Message & Human/User Message?
🔹 ChatGPT/GPT models में इनका क्या role है?
🔹 F-String क्या होता है और LLM apps में क्यों इस्तेमाल होता है?
🔹 Python में OpenAI API कैसे call करें?
🔹 Model invocation with .invoke()
🔹 Dynamic prompt generation using user inputs
🔹 Real example:
 ✔ Capital finder app
 ✔ Soap advertisement generator (Hindi, English, Bhojpuri versions!)
 ✔ Language-based response generation

🧠 Hands-on Topics Covered

✔ LLM initialization
✔ Creating prompts using F-Strings
✔ Passing variables like:
 - product name
 - language
 - punchline
 - country name
✔ Multi-message prompts (system + user)
✔ Understanding AI message (LLM output)
✔ Debugging API key & .env issues
✔ Beginner-friendly explanation throughout

📂 Use Cases We Built Live

Capital Finder App

Indian Style Advertisement Creator

Multilingual Response Generator

Custom Prompt Template

🎯 Who should watch this?

GenAI beginners

LangChain learners

Python + AI developers

Students building LLM-based apps

Anyone prepping for Generative AI projects

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Видео Lecture 6: F-Strings, System & User Messages Explained | Build Your First LLM App (Hindi) канала NeuroVed