API reference · sandbase-ai

sandbase-ai/creative-upscaler

Integrate this model through SandBase's unified API, with production-ready schemas and examples.

IMAGEAsyncOpen model

Production endpoint

Send your first request

OpenAI-compatible endpoint with unified authentication and usage tracking.

POSThttps://api.sandbase.ai/v1/run

Model IDsandbase-ai/creative-upscaler

Input Schema

18 parameters · 2 required · 16 optional

Parameter	Type	Required	Description
`image`	string	Required	The image to upscale.
`prompt`	string	Required	The prompt to use for generating the image. Be as descriptive as possible for best results. If no prompt is provide BLIP2 will be used to generate a prompt.
`seed`	integer	Optional	The same seed and the same prompt given to the same version of Stable Diffusion will output the same image every time.
`scale`	number	Optional	The scale of the output image. The higher the scale, the bigger the output image will be. · Min: 1 · Max: 5 · Default: 2
`detail`	number	Optional	How much detail to add · Min: 0 · Max: 5 · Default: 1
`skip_ccsr`	boolean	Optional	If set to true, the image will not be processed by the CCSR model before being processed by the creativity model. · Default: false
`creativity`	number	Optional	How much the output can deviate from the original · Min: 0 · Max: 1 · Default: 0.5
`model_type`	string	Optional	The type of model to use for the upscaling. Default is SD_1_5 · Options: SD_1_5, SDXL · Default: "SD_1_5" SD_1_5SDXL
`prompt_suffix`	string	Optional	The suffix to add to the prompt. This is useful to add a common ending to all prompts such as 'high quality' etc or embedding tokens. · Default: " high quality, highly detailed, high resolution, sharp"
`base_model_url`	string	Optional	The URL to the base model to use for the upscaling
`guidance_scale`	number	Optional	The CFG (Classifier Free Guidance) scale is a measure of how close you want the model to stick to your prompt when looking for a related image to show you. · Min: 0 · Max: 16 · Default: 7.5
`shape_preservation`	number	Optional	How much to preserve the shape of the original image · Min: 0 · Max: 3 · Default: 0.25
`additional_lora_url`	string	Optional	The URL to the additional LORA model to use for the upscaling. Default is None
`num_inference_steps`	integer	Optional	The number of inference steps to use for generating the image. The more steps the better the image will be but it will also take longer to generate. · Min: 1 · Max: 200 · Default: 20
`enable_safety_checks`	boolean	Optional	If set to true, the resulting image will be checked whether it includes any potentially unsafe content. If it does, it will be replaced with a black image. · Default: true
`override_size_limits`	boolean	Optional	Allow for large uploads that could take a very long time. · Default: false
`additional_lora_scale`	number	Optional	The scale of the additional LORA model to use for the upscaling. Default is 1.0 · Default: 1
`additional_embedding_url`	string	Optional	The URL to the additional embeddings to use for the upscaling. Default is None

Output Schema

Field	Type	Description
`id`	string	Unique identifier for the generation task
`status`	string	Task status: pending, running, completed, failed, timeout
`model`	string	Model used for the generation
`outputs`	array	Array of output items
`outputs[].url`	string	URL of the generated artifact
`outputs[].content_type`	string	MIME type (e.g. image/png, video/mp4)
`error`	object \| null	Error details if failed, null on success
`error.type`	string	Machine-readable error type code
`error.message`	string	Human-readable error description

Async Workflow

This model uses asynchronous execution. Submit a request and poll for the result.

Submit — POST to /v1/run, receive an id
Poll — GET /v1/run/{id} until status is completed, failed, or timeout
Retrieve — Read outputs from the completed response

Code Examples

Ready-to-run snippets

# Step 1: Submit
curl -X POST https://api.sandbase.ai/v1/run \
  -H "Content-Type: application/json" \
  -H "Authorization: Bearer YOUR_API_KEY" \
  -d '{
  "model": "sandbase-ai/creative-upscaler",
  "seed": 42,
  "image": "https://static.sandbase.ai/examples/bytedance/seedvr/upscale/image/input_image_0.png",
  "scale": 2,
  "detail": 1,
  "skip_ccsr": false,
  "creativity": 0.5,
  "model_type": "SD_1_5",
  "prompt_suffix": " high quality, highly detailed, high resolution, sharp",
  "guidance_scale": 7.5,
  "shape_preservation": 0.25,
  "num_inference_steps": 20,
  "enable_safety_checks": true,
  "override_size_limits": false,
  "additional_lora_scale": 1,
  "prompt": "a beautiful sunset over mountains"
}'

# Step 2: Poll result (replace <id>)
curl https://api.sandbase.ai/v1/run/<id> \
  -H "Authorization: Bearer YOUR_API_KEY"

← Back to Creative Upscaler