Remy Reference/models/FLUX.1 [dev] Ultra-Fast

FLUX.1 [dev] Ultra-Fast

FLUX.1 [dev] Ultra-Fast, an image model from WaveSpeed.

imageModelOverride: { model: "flux-dev-lora-ultra-fast" }

BBlack Forest Labs·served viaWaveSpeed·Released 2025

Pricing

List price: $0.006/image
Per generation: $0.00010

Specifications

Context window: 10,000 tokens
Released: 2025
Model string: wavespeed-ai/flux-dev-lora-ultra-fast

Parameters

Model options, passed in imageModelOverride.config.

Parameter	Type	Default	Range / options
`image` Optional reference image for image-to-image generation.	Image URL	—	—
`mask_image` The mask image tells the model where to generate new pixels (white) and where to preserve the original image (black). It acts as a stencil for targeted image editing.	Image URL	—	—
`width`	Number	1024	256–1536
`height`	Number	1024	256–1536
`loras`	LoRAs	—	up to 3
`num_inference_steps` The number of denoising steps. More steps generally produce higher quality but take longer.	Number	28	1–50, step 1
`guidance_scale` Controls how closely the generation follows the prompt. Higher values produce results closer to the prompt but may reduce diversity.	Number	3.5	0–20, step 0.5
`strength` Controls the extent to transform the reference image. Only applies when an image is provided. 1.0 means full transformation.	Number	0.8	0–1, step 0.05
`seed`	Seed	-1	-1–2147483647

Use this model

await mindstudio.generateImage({
  prompt: "...",
  imageModelOverride: {
    model: "flux-dev-lora-ultra-fast",
    config: {
      width: 1024,
      height: 1024,
    },
  },
});