Stable Diffusion X4 Upscaler

Name: Stable Diffusion X4 Upscaler
Author: Stability AI

otheropenrail++

Stable Diffusion X4 Upscaler is a Stability AI model published on the official Stability AI Hugging Face organization.

Capabilities

vision

tool call

structured output

reasoning

json mode

streaming

fine tuning

batch

Details

Model IDstable-diffusion-x4-upscaler

ProviderStability AI

Creatorstability

Family—

Licenseopenrail++

Parameters—

Statusactive

Input modalities—

Output modalities—

Architecture—

Knowledge cutoff—

Training data cutoff—

Release date2022-11-23

Deprecation date—

Typeother

Reasoning tokens—

Max input—

Open weightYes

Sourceofficial

Last updated2026-06-20

API

GET/v1/models/stability/stable-diffusion-x4-upscaler

Stable Diffusion X4 Upscaler

stable-diffusion-x4-upscaler

Stable Diffusion X4 Upscaler is a Stability AI model published on the official Stability AI Hugging Face organization.

Changes · 6 entries

stable-diffusion-x4-upscalerupdatec4a5601Jun 20, 2026, 03:43 PM

huggingface_downloads16991→17651

stable-diffusion-x4-upscalerupdateab879c8Jun 18, 2026, 08:32 AM

huggingface_downloads19740→16991

stable-diffusion-x4-upscalerupdated68a4f1Jun 10, 2026, 02:10 AM

huggingface_downloads22045→19740

stable-diffusion-x4-upscalerupdate19a79d1Jun 4, 2026, 07:15 AM

huggingface_downloads22598→22045

stable-diffusion-x4-upscalerupdate80c574aJun 3, 2026, 07:05 AM

huggingface_downloads28259→22598

stable-diffusion-x4-upscalercreate08f0ffeMay 11, 2026, 08:27 AM