PROMPTUARY vs Stable Diffusion Online
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
PROMPTUARY compared with Stable Diffusion Online
| Detail | 
PROMPTUARY | 
Stable Diffusion Online |
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| What it does | Free AI image prompt vault with structured formulas
| Free online AI image generator using Stable Diffusion XL
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| Stage | Not given
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| Founded | Not given
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| Based in | IT
| GB
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| Pricing model | Freemium
| Free
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| Pricing | Free: €0. Pro: €7.90/month billed annually (€94.80/year, 20% off monthly rate). Ultra: €15.90/month billed annually (€190.80/year, 20% off monthly rate). Pro and Ultra launch soon; founding members lock the launch price.
| Not given
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| Key features | - Structured MODEL/STYLE/SCENE prompt formulas
- Copy-ready prompts, one per image slide
- Works across multiple AI image generators
- Browse by craft category
- Weekly new formula drops
- 1-click presets for image models (Pro)
- Branded PDF pack export (Pro)
- Early access to video prompts (Pro)
- Full-res image downloads (Ultra)
| - Text to image generation with customizable styles and aspect ratios
- Inpainting - add or replace parts of images
- Outpainting - extend image size
- Prompt Database with 9 million prompts
- Reference image input for guided generation
- Multiple model options and style presets
- GPU-enabled fast image generation
- High quality photo-realistic output
- CC0 licensed images for commercial use
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| What makes it different | - Formulas designed to survive model updates and regeneration cycles
- Every image in the vault is the actual output of its formula, not stock or borrowed content
- Variable-labeled structure lets you change one part intentionally without breaking the whole
- Completely free vault with no paywall on core formulas
| - Free access with no installation required - web-based interface runs on GPU servers
- High degree of control with inpainting, outpainting, and style options
- All generated images are CC0 licensed for unrestricted commercial use
- Prompt Database with 9 million examples to improve image generation quality
- Real-time generation with SDXL Turbo single-step processing
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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) | 3 ▲ +3 (up) since last check | 79 ● no change since last check |
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| Trust Flow (Majestic) | 3 | 20 |
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| Citation Flow (Majestic) | 18 | 47 |
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| Referring domains (Majestic) | 4 | 5975 |
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5 details filled in for both companies.
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