Lupa AI Upscaler vs Illustrious XL
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Lupa AI Upscaler compared with Illustrious XL
| Detail | 
Lupa AI Upscaler | 
Illustrious XL |
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| What it does | AI-powered image upscaler that converts photos to stunning 4K resolution in seconds
| Open-source SDXL-based AI model for native high-resolution anime art generation
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| Stage | Not given
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| Founded | Not given
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| Based in | GB
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| Pricing model | Freemium
| Open source
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| Pricing | Not given
| Free for personal and research use; prohibits closed-source proprietary monetization
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| Key features | - AI-powered detail enhancement and reconstruction
- Supports JPG, JPEG, PNG, WEBP, BMP up to 10MB
- Up to 4x resolution increase
- Face enhancement with GFPGAN
- Multiple output resolutions (1K, 2K, 4K, 6K, 8K)
- Processing in 15-30 seconds
- Batch processing API access
- Automatic image deletion for privacy
| - Native 1536x1536 high-resolution generation without upscaling
- Hybrid Prompting System combining natural English and Danbooru tags
- Stable text encoder fine-tuning for superior concept understanding
- Trained on comprehensive Danbooru2023 dataset
- Full compatibility with ComfyUI, Automatic1111, Forge, and Draw Things
- Superior anatomy rendering with flawless hands and character details
- V-Prediction architecture for enhanced dynamic range and contrast
- Highly flexible base canvas for LoRA training and custom checkpoints
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| What makes it different | - Near-lossless upscaling preserving textures, edges, and natural details
- Professional-grade quality suitable for printing and e-commerce
- Free basic plan with no credit card required
- Lightning-fast processing with optimized pipelines
- Privacy-first approach with automatic image deletion
| - Only open-source SDXL model natively trained at 1536x1536 resolution
- Stylistically neutral untuned base canvas unlike Pony Diffusion
- Continuous rapid iterations from v0.1 to v3.5 with aggressive optimization
- Thousands of compatible community-trained LoRAs and derivatives
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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) | 26 ● no change since last check | 13 ▼ −1 (down) since last check |
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| Trust Flow (Majestic) | 10 | 5 |
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| Citation Flow (Majestic) | 19 | 19 |
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| Referring domains (Majestic) | 95 | 45 |
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4 details filled in for both companies.
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