Licences and law / 3D production
AI 3D generators in Spain: how to review the licence
Being able to download a generated model does not mean its licence covers your project. Check these points before investing production time or promising rights to a client.
Identify the exact model and service
Start with the model, version and access route. Downloaded weights, a hosted demo and a commercial API may have different terms.
There is no single “legal AI in Spain” label that settles every use. The assessment depends on the licence, the assignment and the material you supply.
Five questions to answer before generation
| Question | What to check |
|---|---|
| Can I use it from Spain? | Territory and access restrictions |
| Does it allow this commercial use? | Model, service and subscription terms |
| What can I deliver to a client? | Output rights, attribution and redistribution |
| May I upload these references? | Rights and confidentiality obligations |
| What other components are involved? | Dependencies, textures and additional resources |
Save the applicable terms and their date. A comparison table on another website may no longer reflect the conditions that apply to your account.
Three examples worth distinguishing
Hunyuan3D 2 and 2.1. Their community licences exclude the European Union from their territory. A Spanish studio should not treat those licences as permission to use the models. A separate agreement would require its own review; see our Hunyuan3D EU licence analysis.
TRELLIS.2. Microsoft releases the model and code under MIT and identifies dependencies with separate terms. That helps you review the installed system; it does not guarantee rights to every input image or output.
Meshy. Its documentation distinguishes rights by subscription plan and sets conditions for free-tier outputs. Check your account’s current terms before promising an exclusive deliverable.
“Open”, “free” and “paid” are therefore insufficient decision criteria on their own.
Commercial permission is different from exclusivity
Permission to use an output commercially does not establish exclusive rights to it. It also does not remove third-party rights in reference photographs, brands, designs or characters.
When a client supplies images, establish the permitted use. If the assignment requires exclusivity or a transfer of rights, distinguish generated content, your own modifications and third-party resources.
Keep a record for each asset
Record the model identifier, service, plan, applicable terms, reference sources and subsequent edits. Connect that record to the delivered file.
Resolve material ambiguities before producing an entire catalogue. Switching tools during a trial is easier than replacing a finished collection.
Once permissions are clear, assess technical quality using our guide to AI-generated meshes for production.
To review permissions for a specific delivery, tell us which tools produced each piece.
Sources
Checked on September 20, 2026