Stable Image Ultra
Stability AI's most advanced text-to-image model, delivering exceptional photorealism and creative detail from short text prompts.
Stability Photorealistic text-to-image generation from Stability AI
Stable Image Ultra is Stability AI's flagship text-to-image generation model, designed to produce high-quality, photorealistic images from natural language text prompts. It sits at the top of Stability AI's image generation lineup and accepts concise text descriptions — up to a 77-token context window — to generate detailed visuals with strong coherence and fidelity. The model supports configurable inputs including text prompts, selection parameters, and a seed value for reproducible outputs.
Stable Image Ultra is well-suited for applications such as marketing visuals, concept art, product visualization, and editorial illustration. It is available through Stability AI's own API and via AWS Bedrock, making it accessible for production-scale deployments without requiring infrastructure management. Developers and enterprises can integrate it directly into existing workflows through these managed cloud platforms.
What Stable Image Ultra supports
Text-to-Image Generation
Converts natural language text prompts into photorealistic images. Accepts up to 77 tokens of prompt input per request.
Seed-Based Reproducibility
Accepts a numeric seed value as input to produce consistent, reproducible image outputs across multiple runs with the same prompt.
Configurable Output Options
Supports multiple select-type parameters to control generation settings such as output format and aspect ratio.
API & Cloud Integration
Available via Stability AI's REST API and AWS Bedrock, enabling production-scale deployment without managing underlying infrastructure.
Photorealistic Detail
Generates images with high visual fidelity and coherence, including fine detail in textures, lighting, and composition from short prompts.
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Get Started FreeCommon questions about Stable Image Ultra
What is the context window for Stable Image Ultra?
Stable Image Ultra has a context window of 77 tokens, meaning text prompts should be concise and within that token limit for best results.
How is Stable Image Ultra priced?
Pricing details are available via the Model Pricing & Specs page on CloudPrice and may also vary depending on whether you access the model through Stability AI's own API or through AWS Bedrock. Check those sources for current per-image rates.
Does Stable Image Ultra have a training data cutoff date?
A specific training data cutoff date is not publicly disclosed in the available metadata for this model.
What platforms can I use to access Stable Image Ultra?
Stable Image Ultra is available through Stability AI's own API and via AWS Bedrock, which allows developers and enterprises to integrate it into applications without managing infrastructure directly.
What input types does Stable Image Ultra accept?
The model accepts text prompts, selection-based parameters (such as output format or aspect ratio), and a seed value for reproducible generation.
Parameters & options
A blurb of text describing what you do not wish to see in the output image.
A specific value that is used to guide the 'randomness' of the generation. Omit this parameter or pass 0 to use a random seed.
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