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SpAItialNotable
Echo-2
Released Apr 28, 2026
SpAItial's 3D world generation model that turns a text prompt or image into a persistent, explorable 3D Gaussian-splat scene (with semantic segmentation) rather than a video.
- Output
- 3D scene
- Interactive
- Yes
- Inputs
- text, image
- Max session
- —
- Resolution
- —
- Frame rate
- —
- Access
- Generally available
- Licence
- Proprietary
Strengths & weaknesses
Strengths
- Persistent 3D scene, rendered in real time in the browser on any device
- Exports SPZ, PLY, SOG and collision meshes
- Public API with a free tier (800 credits/month)
- Vendor reports it beats Marble 1.1 on WorldScore scene-quality metrics
Weaknesses
- Static scenes: dynamics and physics-based behaviour are listed as future work
interactive true = user navigates the generated static scene in real time; generation itself is asynchronous. Also accepts 360° panoramas and floor plans. apiIds value is the example string from the docs ('model': 'Echo 2'); exact ids should be confirmed via GET /v1/models. Docs also mention Echo HQ (May 2026 checkpoint) and an 'Echo-3' whose API access requires Enterprise — no Echo-3 announcement found, so not added. WorldScore comparison is vendor-run.
Links
API model strings
- spaitial
Echo 2