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

Model IDstable-diffusion-x4-upscaler

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

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