Question: Looking for a thumbnail generator that supports various formats, including long-form and short-form video thumbnails.

If you're looking for a thumbnail generator that can handle long-form and short-form video thumbnails, Pikzels could be a great option. The AI-based tool lets you generate thumbnails in seconds with features like FaceSwap, Instant Thumbnails and AI Ideation & Titles. It can handle all thumbnail formats, and offers a range of subscription options, including a free trial that lets you generate three thumbnails. Future features include the ability to add photos and text to thumbnails, as well as the ability to turn sketches into thumbnails.

Another contender is Fanfuel, which offers an AI Thumbnail Generator along with other tools like Script Maker, SEO Metadata and AnalyticsChat. The tool is geared for YouTube creators looking to grow their channels, with thumbnail generation that can incorporate face swap technology, and other tools to help with other challenges of content creation like writer's block.

For creators who want to optimize their video performance, Thumbly is an AI-based tool that generates high-quality, personalized thumbnail and title suggestions. Its Thumbnail Generator and Title Generator tools are trained on a large YouTube data set, so you can get instant feedback and ratings. Thumbly charges with a credit system, so it's available to creators who are just getting started and those who have been around for years.

Last but not least, Reap is a multipurpose tool that turns long videos into short-form clips optimized for TikTok, Instagram and YouTube Shorts. It's got features like AI curation, speaker detection and dynamic formatting that make it useful for optimizing content for multiple platforms. Reap also can generate thumbnails, so it's a good option if you're looking for a one-stop shop for repurposing videos and generating thumbnails.