stable-diffusion-v1-5 vs Z-Image-Loras

Specs, VRAM requirements and download trends — updated 20 September 2026.

stable-diffusion-v1-5 · A
Params
860 M
Context
30d
1.8 M
creativeml-openrail-m licence · conditional
SDim1973 · B
Params
Context
30d
63 K
apache-2.0 · commercial OK

Specification comparison

Differences are highlighted; identical values are muted.

Specification stable-diffusion-v1-5 Z-Image-Loras
Parameters 860 M
Architecture
Context length
Licence creativeml-openrail-m apache-2.0
Commercial use Conditional Allowed
Languages
Downloads 30d 1,789,858 62,586
Downloads all time 77.4 M 71 K
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2024-08-30 2026-05-31

Download trend

Daily snapshots, last 55 days (28 Jul – 20 Sep)

1.8 M21 K
stable-diffusion-v1-5 Z-Image-Loras

VRAM side by side

On RTX 4090 · 24 GB · 8K context unless noted

stable-diffusion-v1-5 · fp16 26.6 GB / 24 GB
❌ Won’t fit
Z-Image-Loras · fp16 90.1 GB / 24 GB
❌ Won’t fit

Adjacent comparisons