Niantic Spatial's open format compresses larger 3D scenes with faster loading. Understand the impact on WebAR, mobile and digital twins.
Direct answer
SPZ 4 swaps one GZip stream for six parallel ZSTD streams, removes the previous 10 million point limit, and adds extensions and quality control. Niantic reports 3 to 5 times faster compression, approximately 1.5 to 2 times faster loading, and files still about 10 times smaller than PLY without compression.
What changed in the format
SPZ 4 organizes spherical positions, colors, scales, rotations, opacities, and harmonics into independent ZSTD streams. This allows you to use multiple cores for encoding and decoding. A human-readable header reports properties without unpacking the entire file.
The earnings announced
Niantic reports compression of three to five times faster and final loading between approximately 1.5 and two times faster, maintaining a reduction of close to ten times compared to PLY without compression. Scenes with tens of millions of points are now supported.
Why this matters for AR
Realistic captures can enrich catalogs, training and remote assistance, but large files make mobile and web distribution difficult. Shorter rendering time reduces abandonment and allows more complex environments to be loaded. GPU memory and streaming still need to be planned.
Compatibility and extensions
Old files still have the reading path, but outdated readers do not interpret v4. The new extensions system enables vendor metadata without breaking the core. Companies must version producer, consumer and fallback policy.
Nexus Reading
Gaussian splats start to leave the demo and enter pipelines. A compact, open and inspectable format can reduce friction between capture, web, engine and device, as long as interoperability is tested as a product requirement.
FAQ
SPZ 4 replaces all 3D formats?
No. It is focused on Gaussian splats and coexists with meshes and formats such as glTF.
Do older readers open v4 files?
According to Niantic, old readers fail in a recognizable way and need to be updated.
Are the benchmarks valid for any scene?
No. They must be repeated with project size, device and pipeline.
Essential guides to delve deeper into the decision
This editorial analysis was produced by Nexus from the official sources below, consulted on September 7, 2026. The text is original and interprets practical implications for companies.
- Niantic Spatial — SPZ 4 is here: architecture, benchmarks, extensions and format compatibility.
- Niantic Labs — SPZ repository: open format code, specification and tools.
Date reported by the main source: May 5, 2026.