WThumb 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.
WThumb compared with thirds.ai
| Detail | 
WThumb | 
thirds.ai |
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| What it does | AI thumbnail maker for YouTube that remakes references around your title and persona
| On-brand images and PDFs on autopilot
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| Stage | Not given
| Startup
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| Founded | Not given
| 2026
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| Based in | Not given
| GB
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| Pricing model | Freemium
| Freemium
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| Pricing | Free: 2 credits. Starter: $12/month (40 credits) or $9/month billed yearly. Creator: $28/month (160 credits) or $21/month billed yearly. Studio: $56/month (400 credits) or $42/month billed yearly.
| Not given
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| Key features | - Reference-based thumbnail generation from YouTube links or uploaded images
- Prompt-based thumbnail generation from video descriptions
- Persona system with face generation or faceless options
- Full HD+ output at 2048 × 1152 for 16:9 and 1152 × 2048 for 9:16
- Edit thumbnails using plain text descriptions
- Support for multiple languages in thumbnail text
- Library of thousands of high-performing thumbnails from popular channels
- No watermark on any plan including free credits
- Automatic credit refund if thumbnail generation fails
- Credit rollover option to carry unused credits to next month
| - 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
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| What makes it different | - Reference-led approach gives a strong visual starting point without blank canvas
- No design skills required, no layers or canvas tools
- Same high quality generator on all plans including free tier
- Personalized thumbnails with your face or faceless versions
- Both landscape 16:9 and vertical 9:16 Shorts formats on every 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
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 2 ▲ +1 (up) since last check | 29 ● no change since last check |
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| Trust Flow (Majestic) | 6 | 9 |
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| Citation Flow (Majestic) | 23 | 33 |
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| Referring domains (Majestic) | 8 | 102 |
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4 details filled in for both companies.
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