Jib Mix Qwen API

Introduction

Jib Mix Qwen Text to image makes one photoreal image from a written prompt. Jib Mix Qwen is a community checkpoint by J1B, a merge of Qwen-Image fine-tunes and LoRAs built on Alibaba's 20-billion-parameter open Qwen-Image and aimed at natural, photographic people. Pick one of nine aspect ratios at up to 1536 pixels on the long side and get JPEG, PNG or WebP back.

Choose a mode by what you need

Key features

Faces and skin that look photographed

Freckles, pores, stray hair and soft window light come out the way a camera sees them rather than with a polished render sheen.

Fast

Across 30 test runs the median was about six seconds of model time, and 21 of them finished in under ten seconds.

Short text in the scene

Quote a short phrase for a sign or a menu board and it lands in the picture: our chalkboard read "OPEN LATE".

Request parameters

Pricing

Prices are in credits, the same credits you use on the website (1 credit = $0.01). The hold is taken when the task is accepted and settled to the actual charge when it finishes; failed tasks are refunded.

Each task is rounded up to whole credits, so one run at the lowest tier costs 4 credits per image ($0.04).

For an exact number before you run, send the same body to POST /jobs/quote.

Use cases

Portraits and characters

Close-ups and half-body shots for profile pictures, story characters and mood boards, with the age, hair and expression you describe.

Lifestyle scenes

Couples on a night street, a man on a boat at golden hour, a woman in a cafe: everyday moments that look photographed.

Prompt guide & pro tips

Brief it like a photographer

Name the lens feel ("35mm film look", "phone photo with flash"), the light source and the time of day. Specific light is what this model rewards most.

Describe the face

Seeds tend to converge on one dark-haired look. Age, hair length and colour, freckles, beard and expression give you variety; a nationality on its own did not change the face reliably in our tests.

Keep it photographic

Anime and watercolor prompts still came back as photographs.

Two people need extra care

Give each person a clear position in the frame and reroll the seed when hands or limbs merge.

API quick start

Call the Jib Mix Qwen API in three steps

1. Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow- and use the same credits as the website.
2. Send the request. POST /jobs/createTask with model j1b/jib-mix-qwen-image/text-to-image and an input object that follows the parameter table. The response returns a task ID straight away.
3. Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.

# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(uuidgen)"
curl -X POST https://api.popnow.ai/api/v1/jobs/createTask \
  -H "Authorization: Bearer $POPNOW_API_KEY" \
  -H "Content-Type: application/json" \
  -H "Idempotency-Key: $IDEMPOTENCY_KEY" \
  -d '{
  "model": "j1b/jib-mix-qwen-image/text-to-image",
  "input": {
    "prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette",
    "aspect_ratio": "1:1",
    "output_format": "jpeg"
  }
}'

# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$TASK_ID" \
  -H "Authorization: Bearer $POPNOW_API_KEY"

Replace the prompt and any links with your own. The API tab has the response, polling and callback reference.

Jib Mix Qwen API questions

All Jib Mix Qwen models

Plain Qwen Image 2.1 handles illustration and other styles; Jib Mix is tuned only for photographs.

• Jib Mix Qwen APIPhotoreal faces and skin from a Qwen-Image community mixFrom 4 credits per image
• Jib Mix Qwen LoRA APIJib Mix photoreal renders with your own LoRAsFrom 5 credits per image

Other image APIs

• Nano Banana 2.1 APIGoogle's newest Nano Banana, sharp text and 4K outputFrom 8 credits per image
• Nano Banana Pro APIPlans the layout first: dense text, diagrams and 4K editsFrom 17 credits per image
• GPT Image 2.5 Sunburst APIOpenAI's quality-first model, up to 4K with clean textFrom 1 credit per image
• Seedream 5.0 Pro APIHigh-detail images and edits from up to ten referencesFrom 6 credits per image
• FLUX.2 Max APITop-tier FLUX: photoreal light and exact brand colorsFrom 11 credits per image
• Qwen Image 2.1 Pro APIUp to six detailed 2K images from one promptFrom 6 credits per image

More about Jib Mix Qwen

Try it

Jib Mix Qwen AI Image Generator onlineCreate images with Jib Mix Qwen in PopNow

Docs

Jib Mix Qwen model ID and input schema in the API docsPopNow API quickstart: your first request in five minutesImage generation guide for the PopNow APIWebhooks: get Jib Mix Qwen results without polling