Stable Image Ultra

Name: Stable Image Ultra
Author: Stability AI

imageproprietary

Stability AI's highest-quality API image model producing up to 4MP output with superior detail, composition, and photorealism. Available exclusively via the Stability API.

Capabilities

Show unsupported (14)

Image Generation

Negative prompt

Image-to-image

Details

Model IDstable-image-ultra

ProviderStability AI

Creatorstability

Familystable-image

Licenseproprietary

Statusactive

Typeimage

Input modalitiestext, image

Output modalitiesimage

Open weightNo

Parameters—

Architecture—

Max resolution4096x4096

Resolutions1024x1024, 1152x896, 896x1152, 1216x832, 832x1216, 1344x768, 768x1344, 1536x640, 640x1536

Aspect ratios—

Batch size—

Release date2024-07-01

Sourcecommunity

Pricing

$0.08 per image via Stability API.

Family Comparison: stable-image

Model	Max resolution	Resolutions	Aspect ratios	Batch size
Stable Image Core	1536x640	1024x1024, 1152x896, 896x1152, 1216x832, 832x1216, 1344x768, 768x1344, 1536x640, 640x1536	—	—
Stable Image Ultra	4096x4096	1024x1024, 1152x896, 896x1152, 1216x832, 832x1216, 1344x768, 768x1344, 1536x640, 640x1536	—	—

API

GET/v1/models/stability/stable-image-ultra

Stable Image Ultra

stable-image-ultra

Stability AI's highest-quality API image model producing up to 4MP output with superior detail, composition, and photorealism. Available exclusively via the Stability API.

Changes · 1 entries

stable-image-ultracreate48ba559May 7, 2026, 02:17 PM