Stability Ai Stable Diffusion

Playground

Stability AI Stable Diffusion is a latent text-to-image diffusion model that generates photo-realistic images from any text prompt. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.

Features

Stable Diffusion

Stable Diffusion is Stability AI’s efficient and affordable text-to-image and image-to-image generation model. Generate quality images from text descriptions at an ultra-low cost — perfect for high-volume generation, prototyping, and budget-conscious projects.

Why It Stands Out

Ultra-affordable: Generate images at just $0.0035 each — ideal for high-volume use cases.
Dual mode support: Works as both text-to-image and image-to-image generator.
Prompt Enhancer: Built-in AI-powered prompt optimization for better results.
Flexible sizing: Customize width and height independently for any aspect ratio.
Fast generation: Optimized for speed and efficiency.
Reproducibility: Use the seed parameter to recreate exact results.

Parameters

Parameter	Required	Description
prompt	Yes	Text description of the image you want to generate.
image	No	Source image for image-to-image transformation.
width	No	Output width in pixels (default: 1024).
height	No	Output height in pixels (default: 1024).
seed	No	Set for reproducibility; -1 for random.
enable_base64_output	No	Return base64 string instead of URL (API only).

How to Use

Text-to-Image:

Write a prompt describing the image you want. Use the Prompt Enhancer for AI-assisted optimization.
Set dimensions — adjust width and height for your desired aspect ratio.
Set a seed (optional) for reproducible results.
Click Run and download your image.

Image-to-Image:

Upload a source image.
Write a prompt describing the transformation you want.
Adjust dimensions and set a seed (optional).
Click Run and download your transformed image.

Best Use Cases

High-Volume Generation — Generate thousands of images affordably.
Rapid Prototyping — Quickly test ideas and concepts at minimal cost.
Batch Processing — Create large datasets of images for training or testing.
Creative Exploration — Experiment with prompts without budget concerns.
Thumbnail Generation — Produce placeholder images and quick previews.

Pricing

Output	Price
Per image	$0.0035

Pro Tips for Best Quality

Be descriptive in your prompt — include style, mood, lighting, and specific details.
Use style keywords to guide the aesthetic output.
Adjust dimensions to match your intended use case.
For image-to-image, provide a clear source image and describe the desired transformation.
Fix the seed when iterating to compare different prompt variations.

Notes

Ensure uploaded image URLs are publicly accessible.
Processing time varies based on resolution and current queue load.
Please ensure your prompts comply with content guidelines.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/stability-ai/stable-diffusion" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "size": "1024*1024",
    "seed": -1,
    "enable_base64_output": false
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

Parameter	Type	Required	Default	Range	Description
prompt	string	Yes		-	The positive prompt for the generation.
image	string	No		-	The image to generate an image from.
size	string	No	1024*1024	256 ~ 1536 per dimension	The size of the generated media in pixels (width*height).
seed	integer	No	-1	-1 ~ 2147483647	The random seed to use for the generation. -1 means a random seed will be used.
enable_base64_output	boolean	No	false	-	If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.

Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data.id	string	Unique identifier for the prediction, Task Id
data.model	string	Model ID used for the prediction
data.outputs	array	Array of URLs to the generated content (empty when status is not `completed`)
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.has_nsfw_contents	array	Array of boolean values indicating NSFW detection for each output
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Result Request Parameters

Parameter	Type	Required	Default	Description
id	string	Yes	-	Task ID

Result Response Parameters

Parameter	Type	Description
code	integer	HTTP status code (e.g., 200 for success)
message	string	Status message (e.g., “success”)
data	object	The prediction data object containing all details
data.id	string	Unique identifier for the prediction, the ID of the prediction to get
data.model	string	Model ID used for the prediction
data.outputs	string	Array of URLs to the generated content (empty when status is not completed).
data.urls	object	Object containing related API endpoints
data.urls.get	string	URL to retrieve the prediction result
data.status	string	Status of the task: `created`, `processing`, `completed`, or `failed`
data.created_at	string	ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.error	string	Error message (empty if no error occurred)
data.timings	object	Object containing timing details
data.timings.inference	integer	Inference time in milliseconds

Stability AI Sdxl LoRA Stability AI Stable Diffusion 3