WaveSpeedAI APIWavespeed AIJib Mix Qwen Image Text To Image LoRA

Jib Mix Qwen Image Text To Image LoRA

Jib Mix Qwen Image Text To Image LoRA

Playground

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Jib Mix Qwen LoRa — more natural pretty faces (Much better at Asian faces) model for next-gen text-to-image generation with LoRA.

Features

Jib-Mix-Qwen-Image-LoRA (Text-to-Image)

Jib-Mix-Qwen-Image-LoRA is a creative powerhouse that fuses the Qwen-Image 20B MMDiT backbone with LoRA adaptability and Jib-Mix fine-tuning. It excels at producing stunning human portraits, cinematic lighting, and expressive stylistic control—all with simple text prompts. Perfect for creators seeking world-class face generation and full artistic flexibility.


Why it looks great

  • Hybrid Jib-Mix tuning – Trained for superior facial realism, skin tone balance, and lighting fidelity; especially powerful for close-up and half-body portraits.
  • LoRA integration – Load .safetensors LoRA weights for custom characters, aesthetics, or stylizations; control blending with a simple scale slider.
  • Advanced text rendering – Exceptional bilingual performance (Chinese & English) with smooth typography inside the image.
  • Versatile aesthetics – Photorealistic, anime, painterly, or stylized—handles all with consistent detail and color harmony.
  • Emotion-aware diffusion – Captures expressions, pose subtleties, and scene atmosphere for cinematic storytelling.

Limits and Performance

  • Max resolution per job: up to 1536 × 1536 pixels
  • LoRA path: supports <owner>/<model-name> or .safetensors URL
  • LoRA scale: 0.1–1.5 (default = 1.0)
  • Output formats: JPEG / PNG / WEBP
  • Processing speed: ~6–9 seconds per image
  • Prompt: bilingual, descriptive, supports multi-line narratives

Pricing

  • $0.025 per image Each image is billed individually.

How to Use

  1. Write a prompt describing your scene or character (English or Chinese).

  2. Set width and height .

  3. Add one or more LoRAs:

    • Paste LoRA path or URL (.safetensors).
    • Adjust scale to tune blending intensity.
  4. (Optional) Set a seed for reproducibility (-1 = random).

  5. Choose output format (JPEG / PNG / WEBP).

  6. Generate → review → iterate with new LoRAs or parameters.


Pro tips for best quality

  • Use portrait-focused LoRAs to enhance realism and consistency.
  • Combine style + identity LoRAs for hybrid looks (e.g., fantasy portrait + cyberpunk mood).
  • Keep scale moderate (0.7–1.0) for natural results.
  • Fix seed to maintain identity when testing new LoRAs.

Reference


Note

  • LoRAs from Civitai or Hugging Face are supported if exported as .safetensors.
  • Model optimized for portrait, fashion, and cinematic generation—for landscapes or scenes, lower scale or combine with general LoRAs for balance.

Authentication

For authentication details, please refer to the Authentication Guide.

API Endpoints

Submit Task & Query Result


# Submit the task
curl --location --request POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/jib-mix-qwen-image/text-to-image-lora" \
--header "Content-Type: application/json" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}" \
--data-raw '{
    "size": "1024*1024",
    "loras": [],
    "seed": -1,
    "output_format": "jpeg",
    "enable_sync_mode": false,
    "enable_base64_output": false
}'

# Get the result
curl --location --request GET "https://api.wavespeed.ai/api/v3/predictions/${requestId}/result" \
--header "Authorization: Bearer ${WAVESPEED_API_KEY}"

Parameters

Task Submission Parameters

Request Parameters

ParameterTypeRequiredDefaultRangeDescription
promptstringYes-The positive prompt for the generation.
sizestringNo1024*1024256 ~ 1536 per dimensionThe size of the generated media in pixels (width*height).
lorasarrayNomax 3 itemsList of LoRAs to apply (maximum 3).
loras[].pathstringYes-Path to the LoRA model
loras[].scalefloatYes-0.0 ~ 4.0Scale of the LoRA model
seedintegerNo-1-1 ~ 2147483647The random seed to use for the generation. -1 means a random seed will be used.
output_formatstringNojpegjpeg, png, webpThe format of the output image.
enable_sync_modebooleanNofalse-If set to true, the function will wait for the result to be generated and uploaded before returning the response. It allows you to get the result directly in the response. This property is only available through the API.
enable_base64_outputbooleanNofalse-If enabled, the output will be encoded into a BASE64 string instead of a URL. This property is only available through the API.

Response Parameters

ParameterTypeDescription
codeintegerHTTP status code (e.g., 200 for success)
messagestringStatus message (e.g., “success”)
data.idstringUnique identifier for the prediction, Task Id
data.modelstringModel ID used for the prediction
data.outputsarrayArray of URLs to the generated content (empty when status is not completed)
data.urlsobjectObject containing related API endpoints
data.urls.getstringURL to retrieve the prediction result
data.has_nsfw_contentsarrayArray of boolean values indicating NSFW detection for each output
data.statusstringStatus of the task: created, processing, completed, or failed
data.created_atstringISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”)
data.errorstringError message (empty if no error occurred)
data.timingsobjectObject containing timing details
data.timings.inferenceintegerInference time in milliseconds

Result Request Parameters

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