Saturday, November 14, 2026 4,523 lists 78,992 records on file
List your app or device

  1. Home
  2. AI Thumbnail Generators
  3. Thumbium

Thumbium

Plans and prices

Hobby

$17one-time

100 thumbnails every month in the current double-credit special · YouTube and Shorts · uses your OpenAI key

Business

$29one-time

200 thumbnails every month in the current double-credit special · YouTube and Shorts · uses your OpenAI key

Agency

$49one-time

500 thumbnails every month in the current double-credit special · YouTube and Shorts · uses your OpenAI key

Every plan, in full

On the record

Editing
Users can describe changes in plain language and ask the AI to edit an existing thumbnail.thumbium.com · read 8 Oct 2026
Formats
Projects can use widescreen 16:9 YouTube or vertical 9:16 Shorts sizing.thumbium.com · read 8 Oct 2026
Gallery retention
Generated thumbnails remain in the gallery for 30 days and are then deleted automatically.thumbium.com · read 8 Oct 2026
Generation costs
The page lists OpenAI costs of $0.04 per thumbnail at Medium quality and $0.16 at High quality.thumbium.com · read 8 Oct 2026
Integration
Thumbium uses the user's own OpenAI API key, and image-generation charges are paid to OpenAI.thumbium.com · read 8 Oct 2026
Monthly limits
Generation pauses when the package's monthly thumbnail limit is reached and resumes at the start of the next month unless another package is added.thumbium.com · read 8 Oct 2026
Purpose
Thumbium generates thumbnails from a text prompt for YouTube and Shorts.thumbium.com · read 8 Oct 2026
Reference photos
Users can optionally add subject, product, and background photos for the generated scene.thumbium.com · read 8 Oct 2026
Refund policy
The pricing page offers a 14-day money-back guarantee; its refund policy says OpenAI usage charges are separate and not refundable by Thumbium.thumbium.com · read 8 Oct 2026
Styles
Users can choose art styles and image types such as Photoreal, Cartoon, Anime, and 3D, or leave the image type on Auto.thumbium.com · read 8 Oct 2026
Support
The site lists support at [email protected].thumbium.com · read 8 Oct 2026
Variations
Thumbium can generate up to four thumbnail variations per request.thumbium.com · read 8 Oct 2026
Who it is for
The page describes Hobby for creators posting a few videos monthly, Business for regular uploaders, and Agency for agencies and high-volume channels.thumbium.com · read 8 Oct 2026

Alternatives to Thumbium

Every alternative, ranked