3D
Pi3 and Pi3X
Permutation-equivariant feed-forward model for visual geometry and 3D reconstruction without a fixed reference view.
Levelmodel
Class3D
Parameters1.36B
Contextnot in the notes
Released17 Jul 2025
Opennessopen weights restricted
Runs onnot in the notes
Statusactive
Identity
- Developer
- Shanghai AI Lab
- Family
- not in the notes
- Released
- 17 Jul 2025 sourcesannouncement page
- Weights published
- 27 Dec 2025
- Record checked
- 12 Oct 2026
Where this comes from
Developer and dates from the research notes. Release date is the vendor's public announcement; weights date is when open weights were published.
Architecture and Size
- Architecture
- not in the notes
- Total parameters
- 1.36B sources
- Active parameters
- –
- Checkpoint parameters
- –
- Note
- Parameter count from the Hugging Face safetensors total.
- Context length
- not in the notes
- Input
- image
- Output
- 3D
Where this comes from
Parameter counts as the developer states them. Where the checkpoint holds a different total, both are shown (register A16).
Openness and Access
- Openness
- open weights restricted
- Licence
- Creative Commons Attribution-NonCommercial 4.0 sources
- Access routes
- open weights download
Where this comes from
The licence file governs over registry tags and aggregator labels.
Deployment
- Runs on
- not in the notes
- Footprint
- not in the notes
- Runtimes
- not in the notes
Where this comes from
Deployment tiers and runtimes as named in the notes. Footprint is the notes' figure, not a measurement by AURION.
Indonesia
- Indonesian support
- not stated
- Regional languages
- not in the notes
- Jakarta hosting
- unknown
- Languages
- not in the notes
Where this comes from
Indonesia fields are carried on every model; unknown is an allowed value.
Benchmark Results
The notes record no benchmark result for this model.
Lineage
The notes record no lineage for this model.
Industry Use Cases
No industry use case links this model.
Links
DeveloperShanghai AI Labnational lab, China
Shanghai AI Labnational lab, ChinaModelPi3 and Pi3XShanghai AI Lab, 3D
Pi3 and Pi3XShanghai AI Lab, 3DUse Casesnone recorded
Who Runs Itnone recorded
Organisations 1
Sources
- arxiv.org/abs/2507.13347 https://arxiv.org/abs/2507.13347
- huggingface.co/yyfz233/Pi3X https://huggingface.co/yyfz233/Pi3X
- huggingface.co/api/models?pipeline_tag=image-to-3d&sort=down... https://huggingface.co/api/models?pipeline_tag=image-to-3d&sort=downloads&limit=50
- arxiv.org/html/2507.13347 https://arxiv.org/html/2507.13347
To cite this page: Project AURION, AI Use-Cases Research & Innovation, "Pi3 and Pi3X", https://aurion.semai.id/models/pi3/, records of October 2026.