--- title: How to Build a Q&A LLM Application with LangChain and Gemini description: This tutorial explains how to build a Q&A LLM application using LangChain and Gemini. It covers steps for initializing the environment, importing modules,... canonical: https://daily.dev/posts/how-to-build-a-q-a-llm-application-with-langchain-and-gemini-8fc80eqvw twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: How to Build a Q&A LLM Application with LangChain and Gemini | daily.dev og:description: This tutorial explains how to build a Q&A LLM application using LangChain and Gemini. It covers steps for initializing the environment, importing modules,... og:url: https://daily.dev/posts/how-to-build-a-q-a-llm-application-with-langchain-and-gemini-8fc80eqvw og:image: https://api.daily.dev/og/posts/8fC80eqVW.png og:image:alt: How to Build a Q&A LLM Application with LangChain and Gemini og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # How to Build a Q&A LLM Application with LangChain and Gemini **[The New Stack](https://daily.dev/sources/newstack)** · 5 min read · 1 upvotes · 0 comments ## Summary This tutorial explains how to build a Q&A LLM application using LangChain and Gemini. It covers steps for initializing the environment, importing modules, initializing models, loading and splitting the PDF, configuring the retriever and defining the retrieval chain, and invoking the chain. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#python](https://daily.dev/tags/python), [#qa](https://daily.dev/tags/qa), [#langchain](https://daily.dev/tags/langchain) [View this post on daily.dev](https://daily.dev/posts/how-to-build-a-q-a-llm-application-with-langchain-and-gemini-8fc80eqvw) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"How to Build a Q&A LLM Application with LangChain and Gemini","url":"https://daily.dev/posts/how-to-build-a-q-a-llm-application-with-langchain-and-gemini-8fc80eqvw","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/how-to-build-a-q-a-llm-application-with-langchain-and-gemini-8fc80eqvw"},"datePublished":"2024-03-26T09:04:34.358Z","dateModified":"2024-05-09T08:43:33.910Z","description":"This tutorial explains how to build a Q&A LLM application using LangChain and Gemini. It covers steps for initializing the environment, importing modules,...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1fa1952446edda8a8d58c8536890efef?_a=AQAEufR","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/1fa1952446edda8a8d58c8536890efef?_a=AQAEufR","isAccessibleForFree":true,"articleSection":"The New Stack","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"The New Stack","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/newstack","url":"https://daily.dev/sources/newstack"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/how-to-build-a-q-a-llm-application-with-langchain-and-gemini-8fc80eqvw","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":1},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"python,qa,langchain","timeRequired":"PT5M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"The New Stack","item":"https://daily.dev/sources/newstack"},{"@type":"ListItem","position":3,"name":"How to Build a Q&A LLM Application with LangChain and Gemini"}]} ```