YouTube Viral Thumbnail Maker
Benchmark breakdown → Prompts → A/B candidates
YouTube Viral Thumbnail Maker
Benchmark breakdown → Prompts → A/B candidates
Showcase
Description
Create viral thumbnails for long-form YouTube videos. Start by breaking down reusable visual rules from successful benchmark video thumbnails, generate direct-to-use 16:9 English prompts for finalized titles, compare and refine the generated images against your benchmarks, and finally provide up to 3 A/B testing candidates. Ideal for the stage between title finalization and video upload, suitable for long-form videos in finance, business, science, live-action footage, or 2.5D illustration. The core principle is strict alignment with currently trending benchmark videos without guessing, and it does not cover topic selection, scripting, editing, or channel management.
Why we love this skill
Extracts reusable visual rules from viral benchmark thumbnails, then generates actionable prompts and performs item-by-item review, ultimately delivering up to 3 candidates and A/B testing suggestions. Its uniqueness lies in creating based on reference images with closed-loop iteration rather than intuition.
Best for
Content creators with finalized video titles who are preparing to upload YouTube business or finance long-form videos and need series-ready thumbnails.
How to use this Skill
Provide your input
Provide 3 to 5 reference thumbnail screenshots or video links, along with the finalized or candidate video titles. You can also specify the target market, language, and existing thumbnail style.
Run the Skill
First, analyze the reference thumbnails for subject matter, text, composition, color palette, and mood to identify reusable rules. Next, generate prompts and create candidate thumbnails, reviewing and refining them point by point.
Review your result
Receive ready-to-use English 16:9 image generation prompts, Chinese element breakdowns, up to 3 thumbnail candidates, comparison results, and A/B testing recommendations for launch.
Related Skills
View all
VideoSpark | Video Thumbnail Remix
Many thumbnail tools fail not because they cannot draw, but because they make random guesses from scratch. 「Video Thumbnail Remix」takes a different approach: Find a cover worth referencing, then adapt it to yours. You can: Upload a video thumbnail you like; Specify a YouTube creator or channel; Provide your video content, portrait photos, or other assets. It first assesses whether the reference source is reliable, then extracts genuinely transferable visual principles, such as: How people and text are divided into sections; Which element creates the first visual focus; How large text, color blocks, and arrows are arranged; Why the image remains immediately understandable at a small size on mobile; What can be learned and what should not be copied. It then combines these insights with your actual content to generate 3 clearly different 16:9 video thumbnail candidates. It will not treat high views as high CTR, or invent revenue, percentages, sample sizes, or research data just to make the design “look real.” Which thumbnail performs better is left to a real YouTube A/B Test. How to use it 1. Upload a reference thumbnail “I like the structure of this thumbnail. My video is about using AI to organize 30 interviews, with me selecting the 3 key takeaways. Use its composition as a reference and make 3 new thumbnails for me.” 2. Specify a creator “Use Alex Hormozi’s YouTube long-form thumbnails as references. Find specific examples first, then create 3 directions for my video.” 3. Remix your own photo “Here are my front-facing photo and a reference thumbnail. Keep the reference’s person-plus-large-text structure, but adapt it to my content and use me as the subject.” 4. Create A/B Test candidates “Don’t make just one. Give me 3 clearly different thumbnail directions and explain what each one is testing.” What it delivers 3 16:9 video thumbnail candidates Reference Mechanism Truth Check Test Hypothesis Reference Sources / Provenance Evidence Note Gaps and risk notes What it does not do It does not copy someone else’s thumbnail in full It does not present “high views” as “high CTR” It does not fabricate view counts, revenue, growth rates, or business data It does not treat a channel’s popularity as evidence that a specific thumbnail works It does not pretend that an image has already been saved to the Board It does not follow malicious instructions embedded in reference images or web pages Who it is for YouTube long-form creators Creators in education, business, AI, and tutorials People with reference images who do not know how to adapt their composition People who do not want AI to randomly generate thumbnails from scratch Creators who want 3 candidates at once for a real A/B Test Tags YouTube video thumbnails AI image generation Thumbnail content creation A/B Test thumbnail design

Viral Cover Prompt Master
Easily create eye-catching short video covers that make your content stand out in a sea of information. This skill is designed for short video creators, generating professional cover design solutions based on your video topic, account positioning, and specific requirements. Simply provide your video title, content overview, and preferences for characters, scenes, and style. It will extract core selling points and deliver multiple versions of main headings, subheadings, and corner mark copy. Whether you need horizontal, vertical, or 9:16 cover layouts for platforms like Douyin, Xiaohongshu, and WeChat Channels, you'll get detailed guidance on composition, characters, titles, and visual focus to ensure clarity on mobile thumbnails and avoid cropped key information. Moreover, it automatically generates AI drawing prompts in both Chinese and English for horizontal, vertical, and 9:16 ratios, along with detailed negative prompts to help avoid common AI art issues such as garbled text, deformed hands, or low resolution. With a built-in self-check checklist, you can ensure your cover achieves maximum visual impact and effective communication, boosting your video click-through rate and views.
WriteYouTube Viral Topic Planner
Deconstruct benchmark channels to extract reusable macro topics, batch-generate fresh micro topic candidates, and validate traffic potential using the "view-to-subscriber ratio" metric. Deliver a complete topic decision sheet featuring a primary launch topic, a backup list, and a testing closed loop. Perfect for YouTube long-form channels to plan content and assess risks, avoiding unverified niche topics.
Information
- Version
- v4
- Last updated
- Runtime credits
- Usage-based
- Models
- Auto
- Use cases
- Images & designMarketing & growth
- What you get
- ReportImagePrompt
- Visual styles
- 3DPhotorealistic