ThumbnailMaker vs thirds.ai
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
ThumbnailMaker compared with thirds.ai
| Detail | 
ThumbnailMaker | 
thirds.ai |
|---|
| What it does | AI thumbnail maker for YouTube that writes the brief, generates the image and checks it at feed size
| On-brand images and PDFs on autopilot
|
|---|
| Stage | Not given
| Startup
|
|---|
| Founded | Not given
| 2026
|
|---|
| Based in | MA
| GB
|
|---|
| Pricing model | Paid
| Freemium
|
|---|
| Pricing | Not given
| Not given
|
|---|
| Key features | - Paste YouTube video link to automatically write brief from title, description and transcript
- Text is read back and corrected if letters are wrong
- Checked at feed size with readability graded at 336 pixels
- Brand kit to apply channel colors, lettering and visual style to every thumbnail
- Export at 4K resolution (3840×2160) recommended by YouTube
- Auto-Polish finds weakest point and fixes it automatically
| - HTML to PDF conversion
- HTML to image conversion
- AI template generator from text
- Image to template conversion
- Brand kits for logo, colors, and fonts
- Smart resize for multiple dimensions
- Spreadsheet batch processing
- ChatGPT and Claude integration via MCP
- REST API for custom integrations
- Zapier, Make, and n8n integrations
|
|---|
| What makes it different | - Text automatically checked and corrected before you see the image
- Built specifically for YouTube's constraints like duration badge corner and feed size
- Full commercial rights with no watermark on any plan
| - Works with your existing AI tools like ChatGPT and Claude through MCP connectors
- Editable design layers instead of generated images, ensuring brand consistency
- Free plan with 50 monthly credits, no card required
- Same tools across all plans: templates, brand kits, AI builds
|
|---|
| Free plan | Not given
| Not given
|
|---|
| Open source | Not given
| Not given
|
|---|
| Platforms | Not given
| Not given
|
|---|
| Public API | Not given
| Not given
|
|---|
| Community votes | 0 | 0 |
|---|
| DR (Domain Rating by Ahrefs) | 13 ▼ −1 (down) since last check | 29 ● no change since last check |
|---|
| Trust Flow (Majestic) | 6 | 9 |
|---|
| Citation Flow (Majestic) | 24 | 33 |
|---|
| Referring domains (Majestic) | 12 | 102 |
|---|
5 details filled in for both companies.
More alternatives to ThumbnailMaker More alternatives to thirds.ai