Z-Image-Turbo vs stable-diffusion-2-1-base
Specs, VRAM requirements and download trends — updated 28 July 2026.
Specification comparison
Differences are highlighted; identical values are muted.
| Specification | Z-Image-Turbo | stable-diffusion-2-1-base |
|---|---|---|
| Parameters | 6.2 B | 870 M |
| Architecture | — | — |
| Context length | — | — |
| Licence | apache-2.0 | openrail++ |
| Commercial use | Allowed | Conditional |
| Languages | 1 | — |
| Downloads 30d | 652,842 | 32,322 |
| Downloads all time | 8.9 M | 541 K |
| Quantizations on the Hub | SAFETENSORS | SAFETENSORS |
| Gated | No | No |
| First seen on the Hub | 2025-11-25 | 2025-06-13 |
Download trend
Daily snapshots, last 56 days (28 Jul – 21 Sep)
1.2 M27 K
Z-Image-Turbo
stable-diffusion-2-1-base
VRAM side by side
On RTX 4090 · 24 GB · 8K context unless noted
stable-diffusion-2-1-base · fp16
20.6 GB / 24 GB
Z-Image-Turbo · fp16
37.5 GB / 24 GB