The latest articles on DEV Community by Nehir Akbaş (@nehirakbas). https://dev.to/nehirakbas https://media2.dev.to/dynamic/image/width=90,height=90,fit=cover,gravity=auto,format=auto/https:%2F%2Fdev-to-uploads.s3.us-east-2.amazonaws.com%2Fuploads%2Fuser%2Fprofile_image%2F3760149%2F4213a189-85f4-414f-aca6-e98985c0939d.jpg https://dev.to/nehirakbas en Nehir Akbaş Sun, 08 Feb 2026 14:34:32 +0000 https://dev.to/nehirakbas/how-i-built-a-prompt-generator-to-create-10k-ai-image-prompts-for-my-ml-dataset-2h57 https://dev.to/nehirakbas/how-i-built-a-prompt-generator-to-create-10k-ai-image-prompts-for-my-ml-dataset-2h57 <h1> How I Built a Prompt Generator to Create 10K+ AI Image Prompts for My ML Dataset </h1> <h2> The Problem </h2> <p>I was training a custom ML model and needed a large, diverse image dataset. My options:</p> <ol> <li> <strong>Scrape the internet</strong> - Copyright issues, inconsistent quality, messy metadata</li> <li> <strong>Use GPT</strong> - Repetitive outputs, no structure, expensive at scale</li> <li> <strong>Generate my own images</strong> - But I needed thousands of <em>unique, categorized</em> prompts</li> </ol> <p>Manually writing prompts? Not an option.</p> <h2> The Solution: PromptAnvil </h2> <p>I built <a href="https://promptanvil.com" rel="noopener noreferrer">PromptAnvil</a> - a prompt configuration tool that generates hundreds of unique, structured prompts in seconds.</p> <h3> Core Concept </h3> <p>Instead of writing prompts one by one, you define:</p> <ul> <li> <strong>Categories</strong> (subject, style, lighting, mood, etc.)</li> <li> <strong>Entries</strong> with optional weights</li> <li> <strong>Templates</strong> using <code>{tokens}</code> </li> <li> <strong>Logic rules</strong> for context control</li> </ul> <p>Then hit generate → get unique combinations.</p> <h2> Quick Example </h2> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>Categories: - subject: cat, dog, owl - style: watercolor, oil painting, pixel art - mood: peaceful, dramatic Template: "{subject} in {style} style, {mood} atmosphere" Output: → "cat in watercolor style, peaceful atmosphere" → "owl in pixel art style, dramatic atmosphere" → ... 18 unique combinations </code></pre> </div> <p>Scale up to thousands by adding more entries.</p> <h2> Key Features </h2> <h3> 1. Weighted Randomization </h3> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>subject: - warrior (weight: 3) - mage (weight: 1) - archer (weight: 1) </code></pre> </div> <p>Warrior appears 60% of the time.</p> <h3> 2. Conditional Logic </h3> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>IF subject = "archer" THEN setting = "forest" IF setting = "ruins" THEN EXCLUDE mood = "peaceful" </code></pre> </div> <p>No more archers in castles or peaceful ruins.</p> <h3> 3. Tag Linking </h3> <p>Group related entries across categories:<br> </p> <div class="highlight js-code-highlight"> <pre class="highlight plaintext"><code>Tag "cyber": - setting: neon-lit megacity - clothing: tech jacket - lighting: pink neon glow </code></pre> </div> <p>When one is selected, others follow. Context stays coherent.</p> <h3> 4. Export Options </h3> <ul> <li> <strong>JSON</strong> - For programmatic pipelines</li> <li> <strong>TXT</strong> - One prompt per line</li> <li> <strong>CSV</strong> - With category metadata</li> </ul> <p>Perfect for batch processing with ComfyUI, Automatic1111, or custom scripts.</p> <h3> 5. AI-Powered Helpers </h3> <ul> <li> <strong>Config Generator</strong> - Describe what you want, AI builds the entire configuration</li> <li> <strong>Entry Generator</strong> - AI suggests entries for your categories</li> <li> <strong>Logic Rule Generator</strong> - AI creates smart conditional rules</li> <li> <strong>Prompt Refiner</strong> - 3-agent pipeline (Critic → Refiner → Evaluator) improves your prompts</li> </ul> <p>Still in active development, but already saves time of manual setup.</p> <h2> Tech Stack </h2> <ul> <li>Next.js 15 (React 19)</li> <li>TypeScript</li> <li>Zustand for state management</li> <li>Supabase for auth &amp; cloud sync</li> <li>Java + Spring Boot backend</li> <li>Redis for rate limiting &amp; caching</li> </ul> <h2> Try It </h2> <p>🔗 <a href="https://promptanvil.com" rel="noopener noreferrer">promptanvil.com</a></p> <p>Free to use. No signup required for basic features.</p> <p>Built this to solve my own problem - now sharing with the community. Feedback welcome!</p> <p><a href="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fslzbmziqhdba5ze1wuds.png" class="article-body-image-wrapper"><img src="https://media2.dev.to/dynamic/image/width=800%2Cheight=%2Cfit=scale-down%2Cgravity=auto%2Cformat=auto/https%3A%2F%2Fdev-to-uploads.s3.amazonaws.com%2Fuploads%2Farticles%2Fslzbmziqhdba5ze1wuds.png" alt=" " width="800" height="449"></a></p> ai saas productivity buildinpublic