Linum vs Ultrademo
A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.
Linum compared with Ultrademo
| Detail | 
Linum | 
Ultrademo |
|---|
| What it does | Generative video models for animation
| Studio-quality demo videos made from your real product by AI
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| Stage | Not given
| MVP
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| Founded | Not given
| Not given
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| Based in | US
| US
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| Pricing model | Not given
| Freemium
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| Pricing | Not given
| The skill is free. The app is in early access with one free hosted video to start; pricing to be announced.
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| Key features | - Pyramid-JiT (P-JiT) architecture with 32×32 token reduction
- 4× more aggressive token reduction than Linum v2
- Converges in 11× fewer samples than Linum v2
- 2B-parameter model with frozen Qwen text encoder
- Pixel-space diffusion with multi-resolution readouts
- PixelREPA alignment with DINOv3-L
- Curriculum learning over noise schedule
| - Creates videos from real product screens without stock footage
- Four video types: launch, explainer, spotlight and ad
- Multiple formats from one project: landscape, vertical and 15 or 30 second cuts
- AI writes story with hook, problem and resolution
- Checks every frame before showing the video
- Edit by commenting directly on the video
- Generates thumbnails in every platform size
- Only changed scenes are rebuilt when UI updates
- Works with Claude Code, Codex, Gemini CLI, Figma and ElevenLabs
- Free voices included with ElevenLabs integration
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| What makes it different | - Low-cost training: full 2B model trained for just $21K in compute
- Controls baked into model training rather than post-hoc fine-tuning
- Pixel-space compression without separate VAE bottleneck
- Apache 2.0 open release with full model weights and code
| - Free and open source with no per-video cost
- Runs on your computer using your own Claude plan
- Every format generated from one project automatically
- Smart rebuilding when product changes
- Professional voice and music mixing included
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| Free plan | Not given
| Not given
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| Open source | Not given
| Not given
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| Platforms | Not given
| Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 44 ▲ +1 (up) since last check | 11 ▲ +2 (up) since last check |
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| Trust Flow (Majestic) | 5 | 0 |
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| Citation Flow (Majestic) | 32 | 15 |
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| Referring domains (Majestic) | 397 | 6 |
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4 details filled in for both companies.
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