Zlim vs Pixyz at a glance
| Zlim | Pixyz | |
|---|---|---|
| Form factor | Headless API + CLI + MCP | Desktop app (GUI) + SDK/plugin |
| CAD ingestion | STEP, Creo, CATIA (+ FBX, USD, STL…) | Broad CAD (STEP, CATIA, NX, Creo, JT…) |
| Interactive tessellation control | Preset-driven (fast/balanced/maximum) | Yes — fine-grained, re-tessellate per part |
| Output | Optimized GLB | FBX, glTF, USD, OBJ (Unity-oriented) |
| Automation | API-first; deterministic | Scriptable (Python), desktop-centric |
| Ecosystem | Runtime-agnostic (web/AR/game) | Unity ecosystem |
| Pricing | $0 / $29 / $149 per month | ≈ $2,950 / seat / year (Unity Industrial Collection) |
| Best for | Automated format→GLB pipelines | Interactive CAD prep into Unity |
What is Pixyz?
Pixyz (rebranded Unity Asset Transformer) is Unity's toolset for getting heavy CAD data into real time. Its Studio app offers strong interactive tessellation, CAD topology correction, decimation, and healing, with per-part control and history. It's the tool of choice when an engineer or technical artist needs to hand-prepare complex CAD for a Unity project.
How Zlim is different
Zlim isn't a desktop app — it's an engine you call. There's no GUI to sit in front of and no per-seat license; you hit a REST API, run a CLI in CI, or wire the MCP server into an AI agent, and get back an optimized GLB. That makes Zlim a fit for automating conversion across many assets rather than crafting one by hand.
Pixyz gives you more interactive control over tessellation and is deeply integrated with Unity; Zlim gives you runtime-agnostic GLB (web, AR, and any engine) with deterministic, reported output and subscription pricing that doesn't scale per seat.
When to choose which
Choose Pixyz when you need hands-on, per-part CAD preparation and your target is Unity.
Choose Zlim when you want to automate CAD/FBX/USD → optimized GLB across a pipeline, without a desktop tool or per-seat licensing, for web/AR/any engine.
FAQ
Is Zlim a Pixyz alternative for CAD to GLB?
For automated CAD→GLB, yes. Zlim ingests STEP, Creo, and CATIA and outputs optimized GLB via API/CLI/MCP. Pixyz offers more interactive, fine-grained tessellation control and Unity integration, but it's a per-seat desktop tool rather than a headless service.
Does Zlim require Unity?
No. Zlim outputs standard GLB (binary glTF 2.0), which works in web viewers, AR frameworks, and any game engine. Pixyz is oriented around the Unity ecosystem.
How does pricing compare?
Pixyz is typically licensed per seat (about $2,950/year via the Unity Industrial Collection). Zlim is a usage-quota subscription — free, $29/mo, or $149/mo — with no per-seat cost.
Try Zlim free
25 optimizations a month, no card required. Any format in, optimized GLB out.