Introduction
Qwen Image 2.1 Turbo Text to Image turns a written brief into images. Alibaba's Qwen team released Turbo with open weights on 9 October 2026 as an accelerated checkpoint of Qwen Image 2.1: the same 7B visual generation architecture, sampled in 8 denoising steps where Alibaba's own 2.1 examples use 40. One request returns 1 to 6 PNG images.
Choose a mode by what you have
| Starting material | Mode |
|---|---|
| A written brief and nothing else | Qwen Image 2.1 Turbo Text to Image |
| One or more images to change | Qwen Image 2.1 Turbo Image Editing |
Key features
Speed
13 to 39 seconds per request end to end across our runs, including two 2K images in one call in 28 seconds. Prompt expansion and thinking mode add time when they are on.
Text in the image
Our cabaret poster asked for "VELVET HOUR" and "LATE SHOW · FRIDAYS 11 PM" and got both, letter for letter.
Fifteen ratios, three sizes
Every ratio from 3:1 to 1:3 at 1k, 1.5k and 2k. At 2K:
| Ratio | Output size |
|---|---|
| 1:1 | 2048 × 2048 |
| 16:9 | 2688 × 1536 |
| 9:16 | 1536 × 2688 |
| 4:3 | 2368 × 1760 |
| 3:2 | 2496 × 1664 |
| 2:3 | 1664 × 2496 |
Turbo or Qwen Image 2.1
| Turbo | Qwen Image 2.1 | |
|---|---|---|
| Denoising steps | 8 | 40 |
| Images per request | 1 to 6 | 1 |
| Output format | PNG | JPEG, PNG or WebP |
| Transparent background | By asking in the prompt | A dedicated switch |
Pick Turbo for volume and quick variations. Pick Qwen Image 2.1 when you need its format and background controls.
Request parameters
| Parameter | Required | Description |
|---|---|---|
seed | No | Reuse the same number to get a repeatable result. ≥ 0 · ≤ 2147483647 |
prompt | Yes | Describe the subject, composition, lighting, and any wording to render. There is no negative prompt: write what to leave out directly in the prompt. |
resolution | No | Output size. Bigger sizes look sharper and cost more. 1k · 1.5k · 2k · Default: 2k |
num_outputs | No | How many results to make in one go. ≥ 1 · ≤ 6 · Default: 1 |
aspect_ratio | No | The shape of the frame: wide, square or tall. 1:1 · 16:9 · 9:16 · 4:3 · 3:4 · 3:2 · 2:3 · 21:9 · 9:21 · 2:1 · 1:2 · 3:1 · 1:3 · 5:4 · 4:5 · Default: 1:1 |
enable_thinking | No | Spend extra reasoning on the rewrite for better images, at the cost of a longer wait. Only works while prompt expansion is on. Default: true |
enable_prompt_expansion | No | Lets the model add detail to a short prompt. Default: false |
prompt_optimization_mode | No | How prompt expansion rewrites the brief: direct is a single pass that suits most prompts; agent is a multi-step rewrite with finer detail. direct · agent · Default: direct |
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.
| Option | Credits per image | ≈ USD |
|---|---|---|
| Standard | 2.16 | $0.022 |
Each task is rounded up to whole credits, so one run at the lowest tier costs 3 credits per image ($0.03).
For an exact number before you run, send the same body to POST /jobs/quote.
Use cases
Posters and covers with real text
Quoted headlines come back spelled correctly, so event posters, thumbnails and covers can be generated with their wording in place.
Many variations at once
Up to six images per request makes it practical to explore compositions, then keep one and edit it in the image editing mode.
Social and ad formats
Pick the ratio for the placement (9:16 for stories, 1:1 for feeds, 16:9 for banners) and generate at 2K for crisp crops.
Prompt guide & pro tips
Turn expansion on for short everyday prompts
A six-word idea gets a fuller scene. direct suits most prompts, agent rewrites in more detail, and thinking mode spends extra time on a better rewrite. Leave expansion off when your prompt is already detailed and has to run as written.
Write in a fixed order
Subject, wardrobe, pose, light, lens and palette, in plain sentences. Name the light source and its direction instead of a mood word.
Quote the words that must appear
Put exact wording in quotation marks, keep each line short and say where it sits ("a masthead across the top", "a small line under the title").
API quick start
Call the Qwen Image 2.1 Turbo API in three steps
- Create an API key. Sign in to PopNow and create a key in the API console. Keys start with sk-popnow- and use the same credits as the website.
- Send the request. POST /jobs/createTask with model alibaba/qwen-image-2.1-turbo/text-to-image and an input object that follows the parameter table. The response returns a task ID straight away.
- Get the result. Poll GET /jobs/recordInfo with the task ID, or pass a callBackUrl and we post the result to it. Download the output links when the task succeeds.
# 1. Create the task. Keep the Idempotency-Key if you retry after a network error.
export IDEMPOTENCY_KEY="$(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: $IDEMPOTENCY_KEY" \
-d '{
"model": "alibaba/qwen-image-2.1-turbo/text-to-image",
"input": {
"prompt": "A ceramic teapot on a linen cloth, soft window light, muted palette",
"aspect_ratio": "1:1",
"resolution": "2k",
"num_outputs": 1
}
}'
# 2. Copy data.taskId from the response, then poll until state is succeeded, failed, canceled or expired.
TASK_ID="TASK_ID_FROM_RESPONSE"
curl "https://api.popnow.ai/api/v1/jobs/recordInfo?taskId=$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.
Qwen Image 2.1 Turbo API questions
How much does the Qwen Image 2.1 Turbo API cost?
Qwen Image 2.1 Turbo starts at 3 credits ($0.03) per image with Create Image, its cheapest task. Credits are the same as on the website (1 credit = $0.01), new accounts get 30 free credits, and failed tasks are refunded.
What is the model name for Qwen Image 2.1 Turbo in the API?
Put alibaba/qwen-image-2.1-turbo/text-to-image for Create Image; alibaba/qwen-image-2.1-turbo/edit for Edit Image in the model field of POST /jobs/createTask.
Why did my edit come back unchanged?
Most likely prompt expansion was on. Alibaba's rewrite can drop the part of an instruction it will not pass along, and the source then comes back almost untouched. Turn expansion off and send the same instruction again.
How fast is Qwen Image 2.1 Turbo?
Across our runs, 13 to 39 seconds for text-to-image and 26 to 59 seconds for edits, end to end. Prompt expansion and thinking mode add time when they are on.
How many images and references can one request take?
One to six output images on both endpoints, and one to ten reference images for editing. Refer to references as Image 1, Image 2 and so on in the prompt.
Can I download and run the weights myself?
Yes. The weights are on Hugging Face and ModelScope as Qwen/Qwen-Image-2.1-Turbo and load with QwenImage21Pipeline in Diffusers. They are released under the Qwen Research License Agreement, so check its terms before commercial use.
What are the limits of the Qwen Image 2.1 Turbo API?
Resolutions: 1K · 1.5K · 2K; Aspect ratios: 1:1 · 16:9 · 9:16 · 4:3 · 3:4 · 3:2 +9; Outputs per call: 1–6; Prompt length (characters): 5,000. Requests outside these limits are rejected before anything is charged.
Can I try Qwen Image 2.1 Turbo without writing code?
Yes. The Playground runs Qwen Image 2.1 Turbo on your PopNow credits, needs no API key, and shows the matching code for every run.
All Qwen Image models
Qwen Image 2.1 Pro takes the same settings and spends more on portrait lighting and fine detail. Turbo is the one for volume.
- Qwen Image 2.1 Pro APIUp to six detailed 2K images from one promptFrom 6 credits per image
- Qwen Image 2.1 Turbo APIFast 8-step renders, up to six per promptFrom 3 credits per image
- Qwen Image 2.1 APIOpen model with 2K output and transparent backgroundsFrom 4 credits per image
- Qwen Image 2.1 LoRA APIQwen Image 2.1 images and edits with up to three of your LoRAsFrom 5 credits per image
- Qwen Image 3.0 Pro APIFine typography plus lifelike skin, fabric and glassFrom 6 credits per image
- Qwen Image 3.0 APIReadable signs and headlines rendered into the imageFrom 5 credits per image
- Qwen Image 2 APISimple prompt-to-image and one-photo editsFrom 6 credits per image
- Qwen Image 2512 LoRA APIQwen Image 2512 renders and edits with your own LoRAsFrom 5 credits per image
- Qwen Image Edit 2509 LoRA APIMulti-photo Qwen edits that load your own LoRAsFrom 5 credits per image
- Qwen Image 1.0 LoRA APIOriginal Qwen-Image with clean lettering and your own LoRAsFrom 5 credits per image

