Jib Mix Qwen Image Text To Image LoRA
Playground
Try it on WaveSpeedAI!Jib Mix Qwen LoRA specializes in producing more natural, attractive faces and is particularly strong at rendering Asian facial features for next-gen text-to-image generation with LoRA support. Ready-to-use REST inference API, best performance, no coldstarts, affordable pricing.
Features
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
.safetensorsLoRA 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.safetensorsURL - 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
- $0.025 per image Each image is billed individually.
How to Use
- Write a prompt describing your scene or character (English or Chinese).
- Set width and height.
- Add one or more LoRAs:
- Paste LoRA path or URL (.safetensors).
- Adjust scale to tune blending intensity.
- (Optional) Set a seed for reproducibility (
-1= random). - Choose output format (JPEG / PNG / WEBP).
- Generate → review → iterate with new LoRAs or parameters.
Pro tips for best quality
- Use portrait-focused LoRAs to enhance realism and consistency.
- Combine style + identity LoRAs for hybrid looks (e.g., fantasy portrait + cyberpunk mood).
- Keep scale moderate (0.7–1.0) for natural results.
- Fix seed to maintain identity when testing new LoRAs.
Reference
Note
- LoRAs from Civitai or Hugging Face are supported if exported as
.safetensors. - Model optimized for portrait, fashion, and cinematic generation—for landscapes or scenes, lower scale or combine with general LoRAs for balance.
Authentication
For authentication details, please refer to the Authentication Guide.
API Endpoints
Submit Task & Query Result
set -euo pipefail
export WAVESPEED_API_KEY="your-api-key"
REQUEST_BODY=$(cat <<'JSON'
{
"prompt": "A cinematic ocean wave at sunrise, highly detailed",
"size": "1024*1024",
"seed": -1,
"output_format": "jpeg"
}
JSON
)
# 1. Submit the prediction.
SUBMIT_RESPONSE=$(curl --silent --show-error --fail-with-body \
-X POST "https://api.wavespeed.ai/api/v3/wavespeed-ai/jib-mix-qwen-image/text-to-image-lora" \
-H "Authorization: Bearer ${WAVESPEED_API_KEY}" \
-H "Content-Type: application/json" \
-d "${REQUEST_BODY}")
TASK=$(printf '%s' "${SUBMIT_RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
PREDICTION_ID=$(printf '%s' "${TASK}" | jq -r '.id // empty')
if [ -z "${PREDICTION_ID}" ]; then
printf 'Submission response did not contain a prediction id
' >&2
exit 1
fi
RESULT_URL=$(printf '%s' "${TASK}" | jq -r '.urls.get // empty')
if [ -z "${RESULT_URL}" ]; then RESULT_URL="https://api.wavespeed.ai/api/v3/predictions/${PREDICTION_ID}/result"; fi
# 2. Poll until the prediction finishes.
while true; do
RESPONSE=$(curl --silent --show-error --fail-with-body \
"${RESULT_URL}" \
-H "Authorization: Bearer ${WAVESPEED_API_KEY}")
RESULT=$(printf '%s' "${RESPONSE}" | jq 'if type == "object" and has("data") then .data else . end')
STATUS=$(printf '%s' "${RESULT}" | jq -r '.status // empty')
case "${STATUS}" in
completed) printf '%s\n' "${RESULT}" | jq '.outputs'; break ;;
failed|cancelled|timeout) printf '%s\n' "${RESULT}" | jq . >&2; exit 1 ;;
created|processing) sleep 2 ;;
*) printf 'Unexpected status: %s
' "${STATUS}" >&2; exit 1 ;;
esac
doneParameters
Task Submission Parameters
Request Parameters
| Parameter | Type | Required | Default | Range | Description |
|---|---|---|---|---|---|
| prompt | string | Yes | - | The positive prompt for the generation. | |
| size | string | No | 1024*1024 | - | The size of the generated media in pixels (width*height). |
| loras | array<object> | No | 0 ~ 3 items | List of LoRAs to apply (maximum 3). | |
| seed | integer | No | -1 | - | The random seed to use for the generation. -1 means a random seed will be used. |
| output_format | string | No | jpeg | jpeg, png, webp | The format of the output image. |
| enable_sync_mode | boolean | No | false | - | If set to `true`, the request attempts to wait for the generated result and return outputs in the same response. If the result is not ready within the sync wait window, the API can return a timeout body while the task continues processing. This option is only available via the API and is supported only by some models. |
| enable_base64_output | boolean | No | false | - | If set to `true`, the prediction's `output` strings are returned as **naked base64** (no `data:<mime>;base64,` prefix). When `false` (default), outputs are returned as URLs pointing to our CDN. |
Response Parameters
| Parameter | Type | Description |
|---|---|---|
| code | integer | HTTP status code (e.g., 200 for success) |
| message | string | Status message (e.g., “success”) |
| data.id | string | Unique identifier for the prediction, Task Id |
| data.model | string | Model ID used for the prediction |
| data.outputs | array | Output values, usually URL strings; some models return text strings or structured result objects (empty when status is not completed) |
| data.urls | object | Object containing related API endpoints |
| data.urls.get | string | URL to retrieve the prediction result |
| data.status | string | Status of the task: created, processing, completed, or failed |
| data.created_at | string | ISO timestamp of when the request was created (e.g., “2023-04-01T12:34:56.789Z”) |
| data.error | string | Error message (empty if no error occurred) |
| data.timings | object | Object containing timing details |
| data.timings.inference | integer | Inference time in milliseconds |
Result Request Parameters
| Parameter | Type | Required | Default | Description |
|---|---|---|---|---|
| id | string | Yes | - | Task ID |
Result Response Parameters
| Parameter | Type | Description |
|---|---|---|
| code | integer | HTTP status code (e.g., 200 for success) |
| message | string | Status message (e.g., “success”) |
| data | object | The prediction data object containing all details |
| data.id | string | Unique identifier for the prediction |
| data.model | string | Model ID used for the prediction |
| data.outputs | array<string | object> | Array of generated outputs (empty when status is not completed). Items are usually URL strings, but may be text strings or structured result objects, depending on the model. |
| data.urls | object | Object containing related API endpoints |
| data.urls.get | string | URL to poll for the prediction result |
| data.status | string | Status: created, processing, completed, or failed |
| data.created_at | string | ISO timestamp of when the request was created |
| data.error | string | Error message (empty if no error occurred) |
| data.timings | object | Object containing timing details |
| data.timings.inference | integer | Inference time in milliseconds |