# Thumbnail Master > AI-powered YouTube thumbnail generator with 5 engines and 21 creative styles. ## About Thumbnail Master generates professional YouTube thumbnails in seconds using AI. Available as a web app, Telegram bot, and Chrome extension. ## AI Engines - Nano Banana Pro: Google's premium image model with 4K outputs, precise text rendering, and reference image support (1-3 images) - Nano Banana 2: Google's fast image model, great for quick iterations and creative styles - GPT Image 1.5: OpenAI's photorealistic engine with excellent prompt following and image editing - GPT Image 2: OpenAI's latest and most advanced image generation model - Grok Imagine: xAI's creative engine for bold, eye-catching, and artistic visuals ## Features - 21 creative styles: Cyberpunk Neon, Anime, Watercolor, Film Noir, Comic Book, Pixel Art, and more - Reference image support for brand consistency - Background processing with notifications - Generation history with instant downloads - 2 thumbnail variations per generation ## Platforms - Web: https://thumbmaster.app - Telegram Bot: @ProThumbnailBot - Chrome Extension: Available on Chrome Web Store ## Pricing - Free credits on signup, no credit card required - 1 credit per thumbnail generation (2 images) - Credit packs starting at $5 for 150 credits - Payment via cryptocurrency ## Links - Website: https://thumbmaster.app - Dashboard: https://thumbmaster.app/dashboard.html - Telegram: https://t.me/ProThumbnailBot - Privacy Policy: https://github.com/dyrevse-lang/thumbnail-master-privacy