How Much Does It Cost to Turn a Photo into an STL with AI?
Short answer: on SculptChat, turning a photo into a 3D-printable STL costs roughly €0.38 to €2.24 per model, depending on which AI model you choose. New accounts get 50 free credits (€1 worth) — enough for one to two image-to-3D generations on the cheaper models — and monthly plans lower the per-model price by up to 25%.
Price per model, by AI model
SculptChat charges in credits, and one credit costs €0.02 on a standard top-up. Each AI model has a fixed price per generation, shown before you start — there are no surprise charges and no extra fee to download.
| Image-to-3D model | Credits | Price |
|---|---|---|
| Tripo H3.1 | 19 | €0.38 |
| Tripo H3.1 (textured) | 28 | €0.56 |
| TRELLIS 2 | 28 | €0.56 |
| Rodin 2.5 | 38 | €0.76 |
| Hunyuan 3D 3.1 Pro | 49 | €0.98 |
| Meshy 7.1 | 75 | €1.50 |
| Meshy 7.1 (textured) | 112 | €2.24 |
Prices at the standard €0.02 per credit. Text-to-3D (describing the object instead of uploading a photo) starts even lower, at 10 credits with Tripo H3.1. Every result downloads as STL, 3MF, or GLB at no extra cost.
Pay as you go vs. a monthly plan
Top-ups start at 250 credits for €5 (any amount from 250 to 2,000 credits). If you print regularly, a subscription refills your balance every month at a lower rate per credit. Here's what each option buys in practice:
| Option | Price | Per credit | Saving | Hunyuan models | Tripo models |
|---|---|---|---|---|---|
| Top-up | €5 / 250 credits | €0.020 | — | 5 | 13 |
| Starter | €9 / month | €0.018 | 10% | 10 | 26 |
| Pro | €16 / month | €0.016 | 20% | 20 | 52 |
| Studio | €45 / month | €0.015 | 25% | 61 | 157 |
Model counts assume image-to-3D at 49 credits (Hunyuan 3D 3.1 Pro) or 19 credits (Tripo H3.1, untextured). On the Studio plan a Hunyuan generation works out to about €0.74. Compare plans on the credits page.
What paid plans usually add
Across AI 3D generators, free tiers are common but usually capped with daily or monthly limits. Paying typically gets you:
The hidden costs of a photo-to-print workflow
The generation fee is rarely the biggest cost. Budget for these too:
Filament or resin
A palm-sized figurine uses a few euros of material; large or solid prints use far more.
Failed prints
Thin walls, floating parts, or a model that's too big for your bed waste material and hours.
Mesh repair time
Models built for screens often need holes closed and walls thickened before they'll slice.
If the model is too large for your printer, the free 3D model splitter cuts it into bed-sized parts with alignment joints — no extra credits needed.
Get a printable result first time (and avoid paying twice)
Frequently asked questions
Is there a free way to turn a photo into an STL?
Yes. Every new SculptChat account gets 50 free credits — enough for one Hunyuan 3D generation or two Tripo H3.1 image generations. Downloading the result as STL, 3MF, or GLB costs nothing extra.
Do I pay for failed generations?
No. If a generation fails, the credits it reserved are refunded to your balance automatically.
Do credits expire?
No. Unused credits stay in your account and do not expire.
How much does a single photo-to-STL conversion cost?
Between 19 and 112 credits depending on the AI model — €0.38 to €2.24 at the standard €0.02 per credit, and up to 25% less on a monthly plan.
Turn your photo into an STL
Start with 50 free credits. Upload a photo, pick a model, and download a print-ready STL or 3MF.