ThumbGen vs ThumbnailGo

ThumbGen creates YouTube thumbnails from a written prompt, with the option to add reference images. It is a web service, and its output is prepared for YouTube’s 16:9 aspect ratio. FAST produces 1K images, while PRO offers 2K and 4K resolutions. Users can upload as many as eight reference images; each uses one credit. The service also supports creating several variations in one batch. ThumbGen says most images take 10–30 seconds to generate, depending on complexity and resolution. FAST 1K costs 8 credits per image; PRO costs 30 credits at 2K or 55 at 4K. The free plan is free, billed $0 one-time, and includes 150 credits. Starter costs $9.99 a month and includes 1,000 credits monthly; Creator costs $24.99 a month and includes 2,700. Credits reset each billing cycle and unused credits do not roll over. Subscriptions can be canceled anytime, with access through the billing period; subscription payments and unused credits are nonrefundable unless the law requires otherwise. Google sign-in is available, and support and privacy requests go through a contact form.

ThumbnailGo turns a written prompt and a style choice into YouTube thumbnails. It advertises sub-second generation and multiple variations, and says its proprietary AI was trained on millions of high-performing YouTube thumbnails. Generated images are automatically upscaled to 4K and can be exported or shared to the creator gallery. The Free plan costs nothing and allows five generations monthly, Standard quality, 16:9 and 1:1 formats, and basic presets. Pro costs $9 a month for 100 monthly generations, HD and Ultra quality, all aspect ratios and presets, selfie upload and blending, thumbnail recreation and modification, priority generation, and watermark-free downloads. Ultra costs $29 a month and includes 500 generations, Ultra quality, API access, priority support, and a commercial license. ThumbnailGo runs on the web and via API; full generator operations require Google OAuth registration. Users retain ownership, copyright, and distribution rights to generated thumbnails, with a display license granted for gallery-published work.