Sourceful

GENERATION API CALLS

Image Model Generation

This page is auto-generated from model configurations. Last updated: 2026-07-01.

This reference lists all available Sourceful image generation models and their parameters. Use these parameter names when calling the Generation API.

Riverflow 2.0 REFSR
Riverflow 2.5 Fast
Riverflow 2.5 Pro

Riverflow 2.0 REFSR

Render product images with 100% accuracy and environmental blending

Model ID: model_sourceful-riverflow-2-0-refsr

Capabilities: img2img

LLM Markdown: https://app.scenario.com/api/models/model_sourceful-riverflow-2-0-refsr/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`referenceImage`	file	Yes	-	-	-	-	The base image to apply super resolution to.
`superResolutionReferences`	file_array	Yes	-	-	-	-	Reference images for super resolution guidance.

Riverflow 2.5 Fast

Speed-optimized agentic image model for production and latency-sensitive workflows.

Model ID: model_sourceful-riverflow-2-5-fast

Capabilities: txt2img, img2img

LLM Markdown: https://app.scenario.com/api/models/model_sourceful-riverflow-2-5-fast/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`prompt`	string	Yes	-	-	-	-	Describe what to create or how to edit your reference images. At least 2 characters.
`referenceImages`	file_array	No	-	-	-	-	Optional images to edit or build from. Add up to 4.
`resolution`	string	No	`1K`	-	-	`1K`, `2K`	The output detail level. 2K is sharper but costs more than 1K.
`aspectRatio`	string	No	`auto`	-	-	`auto`, `21:9`, `16:9`, `3:2`, `4:3`, `5:4`, `1:1`, `4:5`, `3:4`, `2:3`, `9:16`	The shape of the output. Auto picks a fitting ratio for you.
`thinkingLevel`	string	No	`medium`	-	-	`low`, `medium`, `high`	How much effort the model spends refining the result. Higher levels improve quality but take longer.
`fontUrls`	string_array	No	-	-	-	-	Optional links to your own font files (TTF, OTF, WOFF, or WOFF2) to use for text in the image. Add up to 2. Each font adds to the cost.
`fontTexts`	string_array	No	-	-	-	-	The text to render in each font above, in the same order. The first entry uses the first font, and so on (up to 300 characters each).
`background`	string	No	`original`	-	-	`original`, `transparent`, `solid`	How to handle the background. Original keeps it as-is, Transparent removes it, or Solid fills it with a color you choose.
`backgroundColor`	string	No	`#ffffff`	-	-	-	The fill color when Background is set to Solid, as a hex code (for example, #ffffff for white).
`scoringPrompt`	string	No	-	-	-	-	Optional instructions telling the model how to judge and pick the best result among its candidates.
`scoringRubric`	string	No	-	-	-	-	Optional detailed scoring criteria, given as a JSON list of 1–8 dimensions (each with a key, label, description, and weight).
`enhancePrompt`	boolean	No	`false`	-	-	-	Lets the model expand and improve your instruction before generating.

Riverflow 2.5 Pro

Top-quality agentic image model with multi-step reasoning, candidate scoring, and adjustable thinking effort.

Model ID: model_sourceful-riverflow-2-5-pro

Capabilities: txt2img, img2img

LLM Markdown: https://app.scenario.com/api/models/model_sourceful-riverflow-2-5-pro/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
`prompt`	string	Yes	-	-	-	-	Describe what to create or how to edit your reference images. At least 2 characters.
`referenceImages`	file_array	No	-	-	-	-	Optional images to edit or build from. Add up to 10.
`resolution`	string	No	`1K`	-	-	`1K`, `2K`, `4K`	The output detail level. Higher resolutions are sharper; 4K costs more than 1K and 2K.
`aspectRatio`	string	No	`auto`	-	-	`auto`, `21:9`, `16:9`, `3:2`, `4:3`, `5:4`, `1:1`, `4:5`, `3:4`, `2:3`, `9:16`	The shape of the output. Auto picks a fitting ratio for you.
`thinkingLevel`	string	No	`medium`	-	-	`low`, `medium`, `high`, `xhigh`	How much effort the model spends refining the result. Higher levels improve quality but take longer.
`fontUrls`	string_array	No	-	-	-	-	Optional links to your own font files (TTF, OTF, WOFF, or WOFF2) to use for text in the image. Add up to 2. Each font adds to the cost.
`fontTexts`	string_array	No	-	-	-	-	The text to render in each font above, in the same order. The first entry uses the first font, and so on (up to 300 characters each).
`background`	string	No	`original`	-	-	`original`, `transparent`, `solid`	How to handle the background. Original keeps it as-is, Transparent removes it, or Solid fills it with a color you choose.
`backgroundColor`	string	No	`#ffffff`	-	-	-	The fill color when Background is set to Solid, as a hex code (for example, #ffffff for white).
`scoringPrompt`	string	No	-	-	-	-	Optional instructions telling the model how to judge and pick the best result among its candidates.
`scoringRubric`	string	No	-	-	-	-	Optional detailed scoring criteria, given as a JSON list of 1–8 dimensions (each with a key, label, description, and weight).
`enhancePrompt`	boolean	No	`false`	-	-	-	Lets the model expand and improve your instruction before generating.