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

Specs, VRAM requirements and download trends — updated 25 August 2026.

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

Specification comparison

Differences are highlighted; identical values are muted.

Specification stable-diffusion-v1-5 Z-Image-Lora
Parameters 860 M
Architecture
Context length
Licence creativeml-openrail-m apache-2.0
Commercial use Conditional Allowed
Languages
Downloads 30d 1,440,259 235,693
Downloads all time 75.8 M 1.2 M
Quantizations on the Hub SAFETENSORS SAFETENSORS
Gated No No
First seen on the Hub 2024-08-30 2025-12-01

Download trend

Daily snapshots, last 29 days (28 Jul – 25 Aug)

1.7 M193 K
stable-diffusion-v1-5 Z-Image-Lora

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-Lora · fp16 108.6 GB / 24 GB
❌ Won’t fit

Adjacent comparisons