Nodes/PopNow/Qwen Image 2.1 Turbo · Text to Image
ComfyUI Node

Qwen Image 2.1 Turbo · Text to Image

Six 2K drafts for about two and a half full-price renders

By popnow-ai·Created 23 days ago·Updated 7 days ago· 0
Qwen Image 2.1 Turbo · Text to Image
    • images
    • task id
    ◄prompt►
    ◄aspect_ratio1:1►
    ◄resolution2k►
    ◄num_outputs1►
    ◄enable_prompt_expansionfalse►
    ◄enable_thinkingtrue►
    ◄prompt_optimization_modedirect►
    ◄seed0►

    Six 2K images for about 13 credits - a shade over two cents each - is the sort of number that changes how you work. You stop agonising over a prompt and start sampling it. This node is the distilled, eight-step version of Qwen Image 2.1's generator, and its whole personality is "cheap, fast, slightly rougher".

    Roughly 2.16 credits ($0.0216) per image. Compare that to the Pro version at 5.4 and you can see exactly what you're buying: quantity of exploration.

    What you're giving up

    The KB is unambiguous about distillation as a category - it buys speed by collapsing many denoising steps into a few, and the detail-refinement those steps did doesn't come back. So where does it show? Fine fabric weave, thin typography, the crispness of a highlight edge. Where doesn't it? Composition, colour, layout, whether a concept landed. For most people's actual workflow - find the shot, then finish the shot elsewhere - the loss is invisible until you compare side by side.

    Qwen's family reputation is typography, and this is the one node in the family where I'd double-check the lettering before shipping. Turbo will render a sign; it may render a slightly soggy one.

    The widgets

    prompt - no negative prompt field on this model, so leave-outs go in the sentence. Descriptive paragraphs beat keyword stacks: the encoder is an LLM, and weighting syntax like (word:1.4) is inert here.

    num_outputs - 1 to 6, default 1. Six is the point. One request, six takes, one batch out; billed per image returned.

    resolution - 2K default, and "every tier costs the same", so there's no budget tier to drop to. The distilling already happened.

    aspect_ratio - 1:1 default. Nothing inherits shape here, so this is your decision and it's baked in.

    enable_prompt_expansion - False by default. Flip it on and the service rewrites your prompt into something fuller first.

    enable_thinking - True by default, with the caveat the author puts in the tooltip: it only works while prompt expansion is on. With expansion off - the default - it does nothing at all. If you've been toggling thinking and seeing no difference, that's why.

    prompt_optimization_mode - direct or agent. Single-pass rewrite versus a slower multi-step one. Only meaningful with expansion on; agent earns its wait on prompts with several constraints.

    seed - fixed by default, so a repeat queue returns the cached batch rather than a second charge.

    Outputs: images, task id. No alpha channel.

    Install

    cd ComfyUI/custom_nodes
    git clone https://github.com/popnow-ai/popnow-comfyui
    

    Restart. Or Manager → Custom Nodes Manager → PopNow → Install. The pack installs nothing else - its metadata declares zero dependencies, as it lives on ComfyUI's bundled aiohttp, torch, Pillow and NumPy. You'll want Python 3.10+ and a ComfyUI recent enough for the V3 node API.

    Key at popnow.ai/api/console/keys → Settings → PopNow → paste → restart once more so your account's catalog builds the node list. Headless server? Export POPNOW_API_KEY and skip the settings field entirely.

    Practical notes

    Because this is the cheap node, it's also the one where you should think about the shape of a batch: six images arrive as one IMAGE tensor, all at the first image's dimensions, because a batch can't be ragged. Uniform by construction here - the same request renders all six.

    Then take the winner to a non-turbo node if the job needs finish. That two-stage habit is the whole reason both variants exist in this pack, and it's also the cheapest competent workflow: search here, print there.

    Codes to recognise: PopNow 40201 for an empty wallet, 40004 for a combination the model can't serve (the message names the field), 400 for a rejected value, 40310 for an unverified email. Failed runs are refunded. Put Settings → PopNow → Max credits per run somewhere sane before a six-up batch, and keep the task id output around for the day a run ends in request_id.

    CategoryPopNow/Image/Alibaba

    Inputs (8)

    NameTypeDefaultDescription
    promptSTRINGDescribe the subject, composition, lighting, and any wording to render. There is no negative prompt: write what to leave out directly in the prompt.
    aspect_ratioCOMBO1:1Output aspect ratio.
    resolutionCOMBO2kOutput resolution tier. Every tier costs the same.
    num_outputsINT11–6How many images to generate in one request (1 to 6). Billed per image returned.
    enable_prompt_expansionBOOLEANfalseLet the service rewrite and expand the prompt before generating.
    enable_thinkingBOOLEANtrueSpend extra reasoning on the rewrite for better images, at the cost of a longer wait. Only works while prompt expansion is on.
    prompt_optimization_modeCOMBOdirectHow prompt expansion rewrites the brief: direct is a single pass that suits most prompts; agent is a multi-step rewrite with finer detail.
    seedINT00–2147483647Same seed and settings, same result. Set 'control after generate' to randomize to get a new result on every run; every run is billed.

    Outputs (2)

    NameTypeDescription
    imagesIMAGE—
    task idSTRINGThe PopNow task id, for the API console logs or support.