Stable Image Models by Stability AI
Stability AIProprietary
2 models2024
Last refreshed 2026-05-09. Next refresh: weekly.
Details
ResearcherStability AI
LicenseProprietary
Commercial useCommercial use: conditional
Models2
Released2024
Capabilities
MultimodalAll models
Links
WebsiteAbout
Stability AI's managed image generation API product line, offering Core (SDXL-based, fast/affordable) and Ultra (SD 3.5 Large-powered, premium quality) tiers. Distinct from the open-weight Stable Diffusion models — Stable Image is API-only with per-image pricing.
Decision facts
- Best fit
- image generationvision and multimodal work
- Capability starting point
- Stable Image Ultra with multimodal inputs
- Lowest tracked input
- Not tracked
- Closest related family
- Stable Diffusion
Current Variants
Use-when guidance is based on each model's tracked capabilities, context window, release date, and replacement status.
2 in view
Stable Image UltraCurrent
Use when the workload needs image generation and multimodal inputs.
2024-09image generationmultimodal inputs
Stable Image CoreCurrent
Use when the workload needs image generation and multimodal inputs.
2024-04image generationmultimodal inputs
| Model | Use when | Released | Signals | Status |
|---|---|---|---|---|
| Stable Image Ultra | Use when the workload needs image generation and multimodal inputs. | 2024-09 | image generationmultimodal inputs | Current |
| Stable Image Core | Use when the workload needs image generation and multimodal inputs. | 2024-04 | image generationmultimodal inputs | Current |
Release Timeline
2 release groups2024-09
1 current
Stable Image Ultra
Currentimage generationmultimodal inputs
2024-04
1 current
Stable Image Core
Currentimage generationmultimodal inputs
Specifications(2 models)
| Model | Released | Multimodal |
|---|---|---|
| Stable Image Ultra | 2024-09 | Yes |
| Stable Image Core | 2024-04 | Yes |
