Image Generation Models - Parameters Reference

FLUX.2 Models

Flux 2 Dev

Model ID: model_bfl-flux-2-dev

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired text prompt
referenceImagesReference ImagesassetId[]NoneNone10NoneOptional
aspectRatioAspect Ratiostring1:1NoneNonematch_input_image, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16Aspect ratio
goFastGo FastbooleanfalseNoneNoneNoneFast generation
seedSeednumberNone0NoneNoneOptional

Flux 2 Flex

Model ID: model_bfl-flux-2-flex

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired
referenceImagesReference ImagesassetId[]NoneNone10NoneReference images
aspectRatioAspect Ratiostring1:1NoneNonematch_input_image, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16Output ratio
resolutionResolutionstring1 MPNoneNone0.5 MP, 1 MP, 2 MP, 4 MPOutput megapixels
promptUpsamplingPrompt UpsamplingbooleanfalseNoneNoneNoneOptional
stepsStepsnumber30150NoneDiffusion steps
guidanceGuidancenumber4.51.510NonePrompt adherence
seedSeednumberNoneNoneNoneNoneOptional

Flux 2 Pro

Model ID: model_bfl-flux-2-pro

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired text prompt
referenceImagesReference ImagesassetId[]NoneNone8NoneOptional
aspectRatioAspect Ratiostring1:1NoneNonematch_input_image, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16Output ratio
resolutionResolutionstring1 MPNoneNone0.5 MP, 1 MP, 2 MP, 4 MPOutput megapixels
promptUpsamplingPrompt UpsamplingbooleanfalseNoneNoneNoneOptional
seedSeednumberNone0NoneNoneOptional

Krea Models

FLUX.1 Krea Dev

Model ID: model_flux-krea-dev

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired
aspectRatioAspect Ratiostring4:3NoneNone9:21, 9:16, 2:3, 3:4, 4:5, 1:1, 3:2, 4:3, 5:4, 16:9, 21:9Output ratio
imageReference ImageassetIdNoneNoneNoneNoneOptional
promptStrengthInfluencenumber0.801NoneImage influence
numOutputsImage Countnumber114NoneNumber of images
stepsStepsnumber28150NoneDiffusion steps
guidanceGuidancenumber3010NonePrompt adherence
megapixelsMegapixelsstring1NoneNone1, 0.25Output size
seedSeednumberNone02147483647NoneOptional

ByteDance Models

Seedream 4

Model ID: model_bytedance-seedream-4

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired
imagesReference ImagesassetId[][]None10NoneOptional
aspectRatioAspect Ratiostring1:1NoneNonematch_input_image, 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16Ratio
sizeResolutionstring2KNoneNone4K, 2K, 1KOutput size
sequentialImageGenerationGenerate Multiple OutputsstringdisabledNoneNonedisabled, autoMultiple image mode
maxImagesMax Imagesnumber1115NoneMaximum outputs

Seedream 3

Model ID: model_bytedance-seedream-3

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired
sizeSizestringregularNoneNonesmall, regular, bigSize preset
aspectRatioAspect Ratiostring4:3NoneNone9:16, 2:3, 3:4, 1:1, 3:2, 4:3, 16:9, 21:9, customRatio
widthWidthnumber20485122048NoneUsed for custom ratio
heightHeightnumber20485122048NoneCustom mode
guidanceScaleGuidancenumber2.5110NonePrompt adherence
seedSeednumberNoneNoneNoneNoneOptional

Dreamina 3.1

Model ID: model_bytedance-dreamina-3-1

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone9:21, 9:16, 2:3, 3:4, 1:1, 3:2, 4:3, 16:9, 21:9, custom
resolutionResolutionstring2KNoneNone1K, 2K
widthWidthnumber13285123024None
heightHeightnumber13285123024None
seedSeednumberNoneNoneNoneNone

Hunyuan Image Models

Hunyuan Image V3

Model ID: model_hunyuan-image-v3

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
negativePromptNegative PromptstringNoneNoneNoneNone
imageSizeImage Sizestringlandscape_4_3NoneNoneportrait_16_9, portrait_4_3, square, square_hd, landscape_4_3, landscape_16_9
numOutputsImagesnumber114None
numInferenceStepsInference Stepsnumber50150None
guidanceScaleGuidancenumber3.5120None
enablePromptExpansionEnable Prompt ExpansionbooleanfalseNoneNoneNone
seedSeednumberNone02147483647None

Ideogram Models

Ideogram Character

Model ID: model_ideogram-character

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
renderingSpeedRendering SpeedstringDefaultNoneNoneDefault, Turbo, Quality
characterReferenceImageCharacter Reference ImageassetIdNoneNoneNoneNone
styleTypeStylestringAutoNoneNoneAuto, Fiction, Realistic
aspectRatioAspect Ratiostring4:3NoneNonemany options
resolutionResolutionstringNoneNoneNonemany options
imageImage for InpaintingassetIdNoneNoneNoneNone
maskMaskassetIdNoneNoneNoneNone
seedSeednumberNone02147483647None

Ideogram V3 Balanced

Model ID: model_ideogram-v3-balanced

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNonemany ratios
resolutionResolutionstringNoneNoneNonemany options
imageImage for InpaintingassetIdNoneNoneNoneNone
maskMaskassetIdNoneNoneNoneNone
styleReferenceImagesStyle Reference ImagesassetId[]NoneNone4None
styleTypeStyle TypestringNoneNoneNoneNone, Auto, General, Realistic, Design
stylePresetStyle PresetstringNoneNoneNonemany presets
seedSeednumberNone02147483647None

Ideogram V3 Quality

Model ID: model_ideogram-v3-quality

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNoneSame list as Balanced
resolutionResolutionstringNoneNoneNoneSame list as Balanced
magicPromptOptionMagic Prompt OptionstringAutoNoneNoneAuto, On, Off
imageImage for InpaintingassetIdNoneNoneNoneNone
maskMaskassetIdNoneNoneNoneNone
styleReferenceImagesStyle ReferencesassetId[]NoneNone4None
styleTypeStyle TypestringNoneNoneNoneNone, Auto, General, Realistic, Design
stylePresetStyle PresetstringNoneNoneNoneLarge preset list
seedSeednumberNone02147483647None

Ideogram V3 Turbo

Model ID: model_ideogram-v3-turbo

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNoneSame as Balanced
resolutionResolutionstringNoneNoneNoneSame as Balanced
magicPromptOptionMagic Prompt OptionstringAutoNoneNoneAuto, On, Off
imageImageassetIdNoneNoneNoneNone
maskMaskassetIdNoneNoneNoneNone
styleReferenceImagesStyle ReferencesassetId[]NoneNone4None
styleTypeStyle TypestringNoneNoneNoneNone, Auto, General, Realistic, Design
stylePresetStyle PresetstringNoneNoneNoneSame large preset list
seedSeednumberNone02147483647None

Imagen Models

Imagen 4

Model ID: model_imagen4

LabelInputTypeDefaultMinMaxAllowed Values
PromptpromptstringNoneNoneNoneNone
Aspect RatioaspectRatiostring4:3NoneNone9:16, 3:4, 1:1, 4:3, 16:9

Imagen 4 Fast

Model ID: model_imagen4-fast

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone9:16, 3:4, 1:1, 4:3, 16:9

Imagen 4 Ultra

Model ID: model_imagen4-ultra

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone9:16, 3:4, 1:1, 4:3, 16:9

Imagen 3

Model ID: model_imagen3

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone9:16, 3:4, 1:1, 4:3, 16:9

Imagen 3 Fast

Model ID: model_imagen3-fast

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone9:16, 3:4, 1:1, 4:3, 16:9

Luma Models

Luma Photon

Model ID: model_luma-photon

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired text prompt
aspectRatioAspect Ratiostring4:3NoneNone9:21, 9:16, 3:4, 1:1, 4:3, 16:9, 21:9Output ratio
imageReferenceUrlReference ImageassetIdNoneNoneNoneNoneOptional
imageReferenceWeightInfluencenumber0.8501NoneInfluence of reference
styleReferenceUrlStyle Reference ImageassetIdNoneNoneNoneNoneOptional
styleReferenceWeightStyle Influencenumber0.8501NoneInfluence of style
characterReferenceUrlCharacter Reference ImageassetIdNoneNoneNoneNoneOptional
seedSeednumberNone0NoneNoneOptional

Luma Photon Flash

Model ID: model_luma-photon-flash

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone9:21, 9:16, 3:4, 1:1, 4:3, 16:9, 21:9
imageReferenceUrlReference ImageassetIdNoneNoneNoneNone
imageReferenceWeightInfluencenumber0.8501None
styleReferenceUrlStyle Reference ImageassetIdNoneNoneNoneNone
styleReferenceWeightStyle Influencenumber0.8501None
characterReferenceUrlCharacter Reference ImageassetIdNoneNoneNoneNone
seedSeednumberNone0NoneNone

Minimax Models

Minimax Image 01

Model ID: model_minimax-image-01

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone9:16, 2:3, 3:4, 1:1, 3:2, 4:3, 16:9, 21:9
numOutputsImage Countnumber119None
promptOptimizerPrompt OptimizerbooleantrueNoneNoneNone
subjectReferenceCharacter Reference ImageassetIdNoneNoneNoneNone

Google Models

Gemini 3.0 Pro

Model ID: model_google-gemini-pro-image-t2i

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired. Text prompt for image generation
referenceImagesReference imagesassetId[]NoneNone14NoneOptional reference images
aspectRatioAspect RatiostringautoNoneNone21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, autoControls output aspect ratio
resolutionResolutionstring1KNoneNone1K, 2K, 4KOutput resolution
useGoogleSearchUse Google SearchbooleanfalseNoneNoneNoneAllows model to optionally browse web context
seedSeednumberNone02147483647NoneOptional reproducibility seed

Gemini 2.5 Image

Model ID: model_nano-banana-t2i

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
referenceImagesReference ImagesassetId[]NoneNone14None
aspectRatioAspect RatiostringautoNoneNone21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, auto
seedSeednumberNone02147483647None

Qwen image Models

Qwen Image

Model ID: model_qwen-image

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone9:16, 3:4, 1:1, 4:3, 16:9
numInferenceStepsStepsnumber50150None
guidanceGuidancenumber4010None
seedSeednumberNone02147483647None

Retrodiffusion Models

Retro Diffusion Animation

Model ID: model_retrodiffusion-animation

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
imageReference ImageassetIdNoneNoneNoneNone
styleStylestringfour_angle_walkingNoneNonefour_angle_walking, walking_and_idle, small_sprites, vfx
widthWidthnumber482496None
heightHeightnumber482496None
returnSpritesheetReturn SpritesheetbooleanfalseNoneNoneNone
bypassPromptExpansionBypass Prompt ExpansionbooleanfalseNoneNoneNone
seedSeednumberNoneNoneNoneNone

Retro Diffusion Plus

Model ID: model_retrodiffusion-plus

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
styleStylestringdefaultNoneNonedefault, retro, watercolor, textured, cartoon, ui_element, item_sheet, character_turnaround, environment, isometric, isometric_asset, topdown_map, topdown_asset, classic, topdown_item, low_res, mc_item, mc_texture, skill_icon
imageReference ImageassetIdNoneNoneNoneNone
strengthGuidancenumber0.801None
inputPalettePaletteassetIdNoneNoneNoneNone
widthWidthnumber25616384None
heightHeightnumber25616384None
numOutputsImage Countnumber1110None
removeBgRemove BackgroundbooleanfalseNoneNoneNone
tileXTile XbooleanfalseNoneNoneNone
tileYTile YbooleanfalseNoneNoneNone
bypassPromptExpansionBypass Prompt ExpansionbooleanfalseNoneNoneNone
seedSeednumberNoneNoneNoneNone

Retro Diffusion Tile

Model ID: model_retrodiffusion-tile

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
imageReference ImageassetIdNoneNoneNoneNone
styleStylestringtilesetNoneNonetileset, tileset_advanced, single_tile, tile_variation, tile_object, scene_object
widthWidthnumber3216384None
heightHeightnumber3216384None
numOutputsImage Countnumber1110None
bypassPromptExpansionBypass Prompt ExpansionbooleanfalseNoneNoneNone
seedSeednumberNoneNoneNoneNone
extraImageExtra Reference ImageassetIdNoneNoneNoneNone
extraPromptExtra PromptstringNoneNoneNoneNone

Reve Models

Reve Create

Model ID: model_reve-create

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
aspectRatioAspect Ratiostring4:3NoneNone16:9, 3:2, 4:3, 1:1, 3:4, 2:3, 9:16
seedSeednumberNoneNoneNoneNone

Reve Remix

Model ID: model_reve-remix

InputLabelTypeDefaultMinMaxAllowed Values
promptPromptstringNoneNoneNoneNone
referenceImagesReference ImagesassetId[]NoneNone4None
aspectRatioAspect Ratiostring4:3NoneNone16:9, 3:2, 4:3, 1:1, 3:4, 2:3, 9:16

Alibaba

Z-Image Turbo

Model ID: model_z-image-turbo

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired text prompt for image generation
heightHeightnumber1024642048NoneOutput image height
widthWidthnumber1024642048NoneOutput image width
stepsStepsnumber8150NoneNumber of inference steps
guidanceGuidancenumber0020NoneShould remain 0 for Turbo models
seedSeednumberNone0NoneNoneOptional reproducibility seed