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</li></ul></nav></div></div></aside><main class="docMainContainer_TBSr"><div class="container padding-top--md padding-bottom--lg"><div class="row"><div class="col docItemCol_VOVn"><div class="docItemContainer_Djhp"><article><nav class="theme-doc-breadcrumbs breadcrumbsContainer_Z_bl" aria-label="Breadcrumbs"><ul class="breadcrumbs"><li class="breadcrumbs__item"><a aria-label="Home page" class="breadcrumbs__link" href="/"><svg viewBox="0 0 24 24" class="breadcrumbHomeIcon_YNFT"><path d="M10 19v-5h4v5c0 .55.45 1 1 1h3c.55 0 1-.45 1-1v-7h1.7c.46 0 .68-.57.33-.87L12.67 3.6c-.38-.34-.96-.34-1.34 0l-8.36 7.53c-.34.3-.13.87.33.87H5v7c0 .55.45 1 1 1h3c.55 0 1-.45 1-1z" fill="currentColor"></path></svg></a></li><li class="breadcrumbs__item"><span class="breadcrumbs__link">Templates</span></li><li class="breadcrumbs__item breadcrumbs__item--active"><span class="breadcrumbs__link">Basic prompting</span></li></ul></nav><div class="tocCollapsible_ETCw theme-doc-toc-mobile tocMobile_ITEo"><button type="button" class="clean-btn tocCollapsibleButton_TO0P">On this page</button></div><div class="theme-doc-markdown markdown"><header><h1>Basic prompting</h1></header><style>[data-ch-theme="github-dark"] { --ch-t-colorScheme: dark;--ch-t-foreground: #c9d1d9;--ch-t-background: #0d1117;--ch-t-lighter-inlineBackground: #0d1117e6;--ch-t-editor-background: #0d1117;--ch-t-editor-foreground: #c9d1d9;--ch-t-editor-lineHighlightBackground: #6e76811a;--ch-t-editor-rangeHighlightBackground: #ffffff0b;--ch-t-editor-infoForeground: #3794FF;--ch-t-editor-selectionBackground: #264F78;--ch-t-focusBorder: #1f6feb;--ch-t-tab-activeBackground: #0d1117;--ch-t-tab-activeForeground: #c9d1d9;--ch-t-tab-inactiveBackground: #010409;--ch-t-tab-inactiveForeground: #8b949e;--ch-t-tab-border: #30363d;--ch-t-tab-activeBorder: #0d1117;--ch-t-editorGroup-border: #30363d;--ch-t-editorGroupHeader-tabsBackground: #010409;--ch-t-editorLineNumber-foreground: #6e7681;--ch-t-input-background: #0d1117;--ch-t-input-foreground: #c9d1d9;--ch-t-input-border: #30363d;--ch-t-icon-foreground: #8b949e;--ch-t-sideBar-background: #010409;--ch-t-sideBar-foreground: #c9d1d9;--ch-t-sideBar-border: #30363d;--ch-t-list-activeSelectionBackground: #6e768166;--ch-t-list-activeSelectionForeground: #c9d1d9;--ch-t-list-hoverBackground: #6e76811a;--ch-t-list-hoverForeground: #c9d1d9; }</style>
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<!-- -->
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<p>This flow is a starting point for understanding Langflow.
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The flow demonstrates how to chat with an LLM, and how modifying the prompt can affect your outcomes.</p>
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<p>Prompts serve as the inputs to a large language model (LLM), acting as the interface between human instructions and computational tasks.</p>
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||
<p>By submitting natural language requests in a prompt to an LLM, you can obtain answers, generate text, and solve problems.</p>
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="prerequisites">Prerequisites<a href="#prerequisites" class="hash-link" aria-label="Direct link to Prerequisites" title="Direct link to Prerequisites"></a></h2>
|
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<ul>
|
||
<li><a href="/get-started-installation">A running Langflow instance</a></li>
|
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<li><a href="https://platform.openai.com/" target="_blank" rel="noopener noreferrer">An OpenAI API key</a></li>
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</ul>
|
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<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="create-the-basic-prompting-flow">Create the basic prompting flow<a href="#create-the-basic-prompting-flow" class="hash-link" aria-label="Direct link to Create the basic prompting flow" title="Direct link to Create the basic prompting flow"></a></h2>
|
||
<ol>
|
||
<li>
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||
<p>From the Langflow dashboard, click <strong>New Flow</strong>.</p>
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||
</li>
|
||
<li>
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<p>Select <strong>Basic Prompting</strong>.</p>
|
||
</li>
|
||
<li>
|
||
<p>The <strong>Basic Prompting</strong> flow is created.</p>
|
||
<p><img decoding="async" loading="lazy" alt="Basic prompting flow" src="/assets/images/starter-flow-basic-prompting-cb8ac9bc6fff2f00d0abef7727abf0ec.png" width="4000" height="2048" class="img_ev3q"></p>
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<p>This flow allows you to chat with the <strong>OpenAI model</strong> component.
|
||
The model will respond according to the prompt constructed in the <strong>Prompt</strong> component.</p>
|
||
</li>
|
||
<li>
|
||
<p>To examine the <strong>Template</strong>, in the <strong>Prompt</strong> component, click the <strong>Template</strong> field.</p>
|
||
<div class="ch-codeblock not-prose" data-ch-theme="github-dark"><div class="ch-code-wrapper ch-code" data-ch-measured="false"><code class="ch-code-scroll-parent"><br><div><span class="ch-code-line-number">_<!-- -->10</span><div style="display:inline-block;margin-left:16px"><span>Answer the user as if you were a GenAI expert, enthusiastic about helping them get started building something fresh.</span></div></div><br></code></div></div>
|
||
</li>
|
||
<li>
|
||
<p>To create an environment variable for the <strong>OpenAI</strong> component, in the <strong>OpenAI API Key</strong> field, click the <svg xmlns="http://www.w3.org/2000/svg" width="24" height="24" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" class="lucide lucide-globe" aria-hidden="true"><circle cx="12" cy="12" r="10"></circle><path d="M12 2a14.5 14.5 0 0 0 0 20 14.5 14.5 0 0 0 0-20"></path><path d="M2 12h20"></path></svg> <strong>Globe</strong> button, and then click <strong>Add New Variable</strong>.</p>
|
||
<ol>
|
||
<li>In the <strong>Variable Name</strong> field, enter <code>openai_api_key</code>.</li>
|
||
<li>In the <strong>Value</strong> field, paste your OpenAI API Key (<code>sk-...</code>).</li>
|
||
<li>Click <strong>Save Variable</strong>.</li>
|
||
</ol>
|
||
</li>
|
||
</ol>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="run-the-basic-prompting-flow">Run the basic prompting flow<a href="#run-the-basic-prompting-flow" class="hash-link" aria-label="Direct link to Run the basic prompting flow" title="Direct link to Run the basic prompting flow"></a></h2>
|
||
<ol>
|
||
<li>Click the <strong>Playground</strong> button.</li>
|
||
<li>Type a message and press Enter. The bot should respond in a markedly piratical manner!</li>
|
||
</ol>
|
||
<h2 class="anchor anchorWithHideOnScrollNavbar_WYt5" id="modify-the-prompt-for-a-different-result">Modify the prompt for a different result<a href="#modify-the-prompt-for-a-different-result" class="hash-link" aria-label="Direct link to Modify the prompt for a different result" title="Direct link to Modify the prompt for a different result"></a></h2>
|
||
<ol>
|
||
<li>To modify your prompt results, in the <strong>Prompt</strong> component, click the <strong>Template</strong> field. The <strong>Edit Prompt</strong> window opens.</li>
|
||
<li>Change the existing prompt to a different character, perhaps <code>Answer the user as if you were Hermione Granger.</code></li>
|
||
<li>Run the workflow again and notice how the prompt changes the model's response.</li>
|
||
</ol></div></article><nav class="docusaurus-mt-lg pagination-nav" aria-label="Docs pages"><a class="pagination-nav__link pagination-nav__link--prev" href="/mcp-tutorial"><div class="pagination-nav__sublabel">Previous</div><div class="pagination-nav__label">Connect to MCP servers from your application</div></a><a class="pagination-nav__link pagination-nav__link--next" href="/simple-agent"><div class="pagination-nav__sublabel">Next</div><div class="pagination-nav__label">Simple agent</div></a></nav></div></div><div class="col col--3"><div class="tableOfContents_bqdL thin-scrollbar theme-doc-toc-desktop"><ul class="table-of-contents table-of-contents__left-border"><li><a href="#prerequisites" class="table-of-contents__link toc-highlight">Prerequisites</a></li><li><a href="#create-the-basic-prompting-flow" class="table-of-contents__link toc-highlight">Create the basic prompting flow</a></li><li><a href="#run-the-basic-prompting-flow" class="table-of-contents__link toc-highlight">Run the basic prompting flow</a></li><li><a href="#modify-the-prompt-for-a-different-result" class="table-of-contents__link toc-highlight">Modify the prompt for a different result</a></li></ul></div></div></div></div></main></div></div></div><footer class="theme-layout-footer footer"><div class="container container-fluid"><div class="row footer__links"><div class="theme-layout-footer-column col footer__col"><div class="footer__title"></div><ul class="footer__items clean-list"><li class="footer__item"><div class="footer-links">
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