Image Generation Models - Parameters Reference

FLUX 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

Flux 2 Max

Model ID: model_bfl-flux-2-max

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNone2048NoneRequired text prompt for image generation
referenceImagesReference ImagesassetId[]NoneNone8NoneOptional reference images for style or content guidance
aspectRatioAspect Ratiostring4:3NoneNonematch_input_image, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16Output image aspect ratio
resolutionResolutionstring1 MPNoneNonematch_input_image, 0.5 MP, 1 MP, 2 MP, 4 MPOutput resolution in megapixels
seedSeednumberNoneNoneNoneNoneOptional reproducibility seed

FLUX1.1 Pro Ultra

Model ID: model_bfl-flux-1-1-pro-ultra

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired text prompt
imagePromptImage PromptassetIdNoneNoneNoneNoneOptional reference image for Flux Redux composition guidance
aspectRatioAspect Ratiostring1:1NoneNone21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16, 9:21Output aspect ratio
rawRawbooleanfalseNoneNoneNoneProduces more natural, less processed images
seedSeednumberNoneNoneNoneNoneOptional reproducibility seed

FLUX1.1 pro

Model ID: model_bfl-flux-1-1-pro

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired text prompt
imagePromptImage PromptassetIdNoneNoneNoneNoneOptional composition guidance image
aspectRatioAspect Ratiostring1:1NoneNone16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16Output image ratio
promptUpsamplingPrompt UpsamplingbooleanfalseNoneNoneNoneAllows creative prompt rewriting
seedSeednumberNoneNoneNoneNoneOptional reproducibility seed

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

OpenAI

GPT Image 1.5

Mode lD: model_openai-gpt-image-1-5

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNone32000NoneRequired text prompt for image generation
referenceImagesReference ImagesassetId[]NoneNone10NoneOptional images for style or content guidance
numOutputsImage Countnumber1110NoneNumber of images generated
aspectRatioAspect RatiostringautoNoneNoneauto, 1:1, 3:2, 2:3Output image aspect ratio
inputFidelityInput FidelitystringhighNoneNonelow, highHow strongly to preserve reference image details
qualityQualitystringhighNoneNonehigh, medium, lowGeneration quality
backgroundBackgroundstringautoNoneNonetransparent, opaque, autoBackground transparency

ByteDance Models

Seedream 4.5

Model ID: model_bytedance-seedream-4-5

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired text prompt for image generation
referenceImagesReference ImagesassetId[]NoneNone14NoneOptional. Up to 14 input images
aspectRatioAspect Ratiostring1:1NoneNonematch_input_image, 21:9, 16:9, 4:3, 3:2, 1:1, 2:3, 3:4, 9:16Controls output aspect ratio
sizeResolutionstring2KNoneNone4K, 2KOutput resolution preset
sequentialImageGenerationGenerate Multiple OutputsstringdisabledNoneNonedisabled, autoSequence mode for multi image generation
maxImagesMax Imagesnumber1115NoneOnly used when sequentialImageGeneration is enabled
pingpongPing PongbooleanfalseNoneNoneNonePlays the sequence forward then backward

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. Multiple of 16
widthWidthnumber1024642048NoneOutput image width. Multiple of 16
stepsStepsnumber8150NoneNumber of inference steps
guidanceGuidancenumber0020NoneShould remain 0 for Turbo models
seedSeednumberNone0NoneNoneOptional reproducibility seed

Pruna AI

P-Image

Model ID: model_p-image

InputLabelTypeDefaultMinMaxAllowed ValuesNotes
promptPromptstringNoneNoneNoneNoneRequired text prompt for image generation
aspectRatioAspect Ratiostring16:9NoneNone9:16, 2:3, 3:4, 1:1, 4:3, 3:2, 16:9, customOutput aspect ratio
widthWidthnumberNone2561440NoneUsed only when aspectRatio is custom. Must be a multiple of 16
heightHeightnumberNone2561440NoneUsed only when aspectRatio is custom. Must be a multiple of 16
seedSeednumberNoneNoneNoneNoneOptional reproducibility seed