Luma Labs

This page is auto-generated from model configurations. Last updated: 2026-06-15.

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

• Luma Photon
• Luma Photon Flash
• Luma Uni-1
• Luma Uni-1 Max

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Luma Photon

Model ID: model_luma-photon

Capabilities: txt2img

LLM Markdown: https://app.scenario.com/api/models/model_luma-photon/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	Yes	-	-	-	-	Text prompt for image generation
aspectRatio	string	No	4:3	-	-	9:21, 9:16, 3:4, 1:1, 4:3, 16:9, 21:9	Aspect ratio of the generated image
imageReferenceUrl	file	No	-	-	-	-	Use a reference image to guide your generation.
imageReferenceWeight	number	No	0.85	0	1	-	Influence of the reference image. Larger values will make the reference image have a stronger influence on the generated image.
styleReferenceUrl	file	No	-	-	-	-	Use a style image to influence the visual style of your generation.
styleReferenceWeight	number	No	0.85	0	1	-	Influence of the style reference image. Larger values will make the style reference image have a stronger influence on the generated image.
characterReferenceUrl	file	No	-	-	-	-	Use a character image to guide your generation.
seed	number	No	-	-	-	-	Use a custom seed for targeted results (single-image inference)

Luma Photon Flash

Model ID: model_luma-photon-flash

Capabilities: txt2img

LLM Markdown: https://app.scenario.com/api/models/model_luma-photon-flash/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	Yes	-	-	-	-	Text prompt for image generation
aspectRatio	string	No	4:3	-	-	9:21, 9:16, 3:4, 1:1, 4:3, 16:9, 21:9	Aspect ratio of the generated image
imageReferenceUrl	file	No	-	-	-	-	Use a reference image to guide your generation.
imageReferenceWeight	number	No	0.85	0	1	-	Influence of the reference image. Larger values will make the reference image have a stronger influence on the generated image.
styleReferenceUrl	file	No	-	-	-	-	Use a style image to influence the visual style of your generation.
styleReferenceWeight	number	No	0.85	0	1	-	Influence of the style reference image. Larger values will make the style reference image have a stronger influence on the generated image.
characterReferenceUrl	file	No	-	-	-	-	Use a character image to guide your generation.
seed	number	No	-	-	-	-	Use a custom seed for targeted results (single-image inference)

Luma Uni-1

Generate or edit images from a text prompt, with optional reference images for style guidance and a web search option to ground results in real-world visuals.

Model ID: model_luma-uni-1

Capabilities: txt2img, img2img

LLM Markdown: https://app.scenario.com/api/models/model_luma-uni-1/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	Yes	-	-	-	-	Describe the image you want to generate, or describe the changes you want to make when editing an existing image. Be specific about subject, style, mood, and composition for best results.
source	file	No	-	-	-	-	An existing image to edit. When provided, your prompt describes what to change rather than what to create. The output keeps the same aspect ratio unless you set one explicitly.
imageRef	file_array	No	“	-	-	-	Reference images that guide the style or content of the output. Add up to 9 for generation, or up to 8 when editing (the source image occupies one slot). Each reference image adds a small cost.
aspectRatio	string	No	3:2	-	-	1:3, 1:2, 9:16, 2:3, 1:1, 3:2, 16:9, 2:1, 3:1	The width-to-height ratio of the generated image. Ignored when editing an existing image unless explicitly set.
outputFormat	string	No	png	-	-	png, jpeg	File format of the generated image. PNG is lossless and supports transparency; JPEG is smaller and loads faster.
webSearch	boolean	No	false	-	-	-	When enabled, the model searches the web for relevant reference images before generating. Useful when your prompt refers to real-world subjects, places, or styles the model may not know well.

Luma Uni-1 Max

Generate or edit images from a text prompt at higher quality, with optional reference images for style guidance and a web search option to ground results in real-world visuals.

Model ID: model_luma-uni-1-max

Capabilities: txt2img, img2img

LLM Markdown: https://app.scenario.com/api/models/model_luma-uni-1-max/markdown

Parameter	Type	Required	Default	Min	Max	Allowed Values	Description
prompt	string	Yes	-	-	-	-	Describe the image you want to generate, or describe the changes you want to make when editing an existing image. Be specific about subject, style, mood, and composition for best results.
source	file	No	-	-	-	-	An existing image to edit. When provided, your prompt describes what to change rather than what to create. The output keeps the same aspect ratio unless you set one explicitly.
imageRef	file_array	No	“	-	-	-	Reference images that guide the style or content of the output. Add up to 9 for generation, or up to 8 when editing (the source image occupies one slot). Each reference image adds a small cost.
aspectRatio	string	No	3:2	-	-	1:3, 1:2, 9:16, 2:3, 1:1, 3:2, 16:9, 2:1, 3:1	The width-to-height ratio of the generated image. Ignored when editing an existing image unless explicitly set.
outputFormat	string	No	png	-	-	png, jpeg	File format of the generated image. PNG is lossless and supports transparency; JPEG is smaller and loads faster.
webSearch	boolean	No	false	-	-	-	When enabled, the model searches the web for relevant reference images before generating. Useful when your prompt refers to real-world subjects, places, or styles the model may not know well.