ThumbGen vs Thumbnail X

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.

Thumbnail X is a web service that creates YouTube thumbnails from text prompts. It produces several options to choose from and download, while automatically handling YouTube aspect ratios, selecting AI models, and applying YouTube-specific optimizations. Files are generated at 1280x720 pixels in JPG or PNG format; the FAQ says most results arrive in under 10 seconds. Prompts and images are saved in generation history for later viewing. The Free plan costs nothing and includes five generations, full-resolution downloads, and basic AI models. Plus costs $1.99 a month with unlimited generations, premium models, and priority support. Lifetime access costs 49.99 USD as a one-time payment. Generated images may be used, modified, and distributed commercially without attribution. Google sign-in is available, and the free tier needs no credit card. The API is still in development.