14 AI Sites Worth Bookmarking: What Each One Does and the First Thing to Try
From NVIDIA's photo-to-3D-world model to an AI co-founder that runs your business: fourteen AI sites that are actually useful, what each one is for, what is free, and the first thing to try on each.
The list
These are the AI sites worth keeping a bookmark for: each one does one job better than a general chatbot does. Most have a free plan, so you can try every one of them today. Here they are at a glance, then a section on each with the link and the first thing to try.
| Site | What it does | Free? |
|---|---|---|
| NVIDIA Lyra 2.0 | One photo becomes a 3D world you can walk through | Open source, needs a big GPU |
| Google Stitch | Describe an app, get its screens and the code | Yes |
| Polsia | An AI co-founder that builds and runs your business | Free to start |
| Napkin | Turns your notes into clean diagrams | Free plan |
| Gamma | A full slide deck from one prompt | Free plan |
| Suno | A full song from one sentence | Free plan |
| Krea | AI images that update live as you sketch | Free plan |
| Ideogram | AI images with words spelled right | Free plan |
| Recraft | Logos and icons as real vector files | Free plan |
| Photoroom | Background removal and product photos | Free plan, watermarked |
| Hugging Face Spaces | Thousands of free AI apps in your browser | Yes |
| Arena | Compare top AI models side by side | Yes |
| Meshy | A picture becomes a 3D model you can print | Free plan |
| Kling | AI video clips | Free credits every day |
1. NVIDIA Lyra 2.0: one photo becomes a 3D world
NVIDIA's research model takes a single photo, generates a walkthrough video of the place around it, then rebuilds that video as a real 3D scene you can move through and even drop a robot into for simulation. It is free and open source, with the model on Hugging Face and the code on GitHub.
The honest catch: it runs on your own hardware, and NVIDIA's instructions are written for a data-centre GPU (they quote about nine minutes per clip on one H100). For most people that means watching the demos or renting a cloud GPU, not running it on a laptop.
- Project page: research.nvidia.com/labs/sil/projects/lyra2
- Code: github.com/nv-tlabs/lyra
- Model: huggingface.co/nvidia/Lyra-2.0
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Unlocks: 2. Google Stitch: an app designed from a sentence · 3. Polsia: an AI co-founder that runs your business · 4. Napkin: notes into diagrams · 5. Gamma: a deck from one prompt · 6. Suno: a song from one sentence · +9 more
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