Auto Caption
Generate a caption for any asset.
{
"file_name": "scan.usdz",
"caption": "A 3D scan of a mossy tree stump."
}
Product
Auto Caption describes complex assets with rich, semantic text—perfect for search and gen-AI datasets.
Our Edge
Why teams choose Auto Caption
High Throughput
Flexible usage tiers up to 1million+ assets per month. Caption thousands by parallelizing API calls.
Semantic captions
Auto Caption describes assets with natural, familiar terms, so search always works.
Enterprise-grade security
SOC-2 certified (pending) and available to deploy via the cloud or on-premises.
Supported Formats
Input any 3D or 2D file type.
Learn more about supported formats →3D files
GLB
GLTF
OBJ
FBX
PLY
STL
USDZ
OFF
ZIP
2D textures and skyboxes
PNG
JPG
TIFF
WEBP
PSD
SVG
BMP
Video
MP4
AVI
WMV
MOV
MKV
MPEG
WEBM
Outputs
Output into platform-agnostic JSON
NodeJs
Serverless
Ruby
Python
PHP
Go
Java
Elixir
Rest
REQUEST
fetch("https://loci-api.com/3d/auto-caption", { body: asset, method: "POST" })
RESPONSE
{ "filename": "californiaave.usdz", "caption": "A 3D scan of a sculptural, abstract fountain in a sunny park.", }
Integrations
Limitless ways to integrate captions into your platform.
![Example integrations illustration](/homepage/products/misc/integration-examples.png)
Technology
Industry-leading accuracy and speed.
Loci Auto Caption | CONVENTIONAL ALTERNATIVES | |
---|---|---|
accuracy | 96%+ | 40-70% |
speed | 1million+ per month (can be parallelized) | Variable |
security | Cloud and on-premises deployments | Data used to train 3rd party models |
support | GLB, GLTF, OBJ, FBX, BLEND, PLY, STL, USDZ, OFF, ZIP | Less supported formats |
Capabilities
Tailor your deployment to your security needs.
OUR INFRASTRUCTURE
SaaS
Start tagging assets instantly with Loci's blazing fast API. No backend infrastructure management needed.
Best for
- Small to medium-sized businesses
- Experimenting with our models
- Non-sensitive data
CLOUD INFRASTRUCTURE
Cloud Platform
Access the Loci platform through a Dockerfile compatible with AWS, Azure, and more.
Best for
- Organizations seeking easy integration with cloud services
- Handling sensitive intellectual property
YOUR INFRASTRUCTURE
Private Deployment
Securely bring Loci's models into your own infrastructure to protect sensitive data.
Best for
- Organizations with strict security needs
- Maximum control and customization
- Handling sensitive intellectual property