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    Lonecats Qwen 2.1 Fast Workflow w/ upscalers and post processing - V2.0 Optimizers
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    LC123 Nodes: https://github.com/lonecatone23/ComfyUI_LC123_nodes

    LC Vision Nodes: https://github.com/lonecatone23/ComfyUI_LC_Vision_nodes

    LC note, which is tied to my LC vision pack, will automatically translate to the following languages:

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    Instagram: https://www.instagram.com/synth.studio.models/

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    This represents many hours of work that I give away for free. If you enjoy it, Please make sure to 👍like and post to my workflows. That is how you support me!!! Also, feel free to ⚡tip 😉


    V2.0

    So now that I've figured the model out....

    • Built in optimizer settings custom designed for your computer with recommendations

    • Removed unnecessary baggage in the image area like remove background and resize as it didn't work.

    • Fixed the issues that every other workflow had with the inferior T2I Images. It now has it's own dedicated encoder

    • Minor OCD stuff

    V1.0 Beta.


    I ran about 20 workflows and none of them were fast (or good) , so I spent some time figuring it out:

    What's Included;

    • Options for diffusion and GGUF models

    • Optimizers (that work 🤔)

      • Model attention backend

      • Qwen image 2.1 Cache (standard)

      • EasyCache

      • I tried a few other's like Sage, Flash, and Sol, but the results were either negligable or they didn't function

    • 5 step Turbo LoRA options

    • Do Image Edit and T2I in the same workflow

    • LC vision prompt assist and enhancers

    • Multi image options

    • VOSR 2.0 Upscaler

    • Post Processing

    What I found out along the way:

    • Native node for Image edit and T2I sucks. If this model picks up traction, I'll build better ones

      • There is a bleed across the image inputs that picks up latent data somehow. No clue why

      • Still figuring this model out. At one point it was giving me fish gills and deer antlers. It's kinda weird

    • Turbo LoRA gives decent results, but you really don't save a lot of time

    • Qwen 2.1 SUCKS at prompt adherence




    Description

    V2.0

    So now that I've figured the model out....

    • Built in optimizer settings custom designed for your computer with recommendations

    • Removed unnecessary baggage in the image area like remove background and resize as it didn't work.

    • Fixed teh issues that every other workflow had wirthe the inferior T2I Images. It now has it's own dedicated encoder

    • Minor OCD stuff

    FAQ

    Workflows
    Qwen 2.1

    Details

    Downloads
    113
    Platform
    CivitAI
    Platform Status
    Available
    Created
    9/29/2026
    Updated
    9/30/2026
    Deleted
    -

    Files

    lonecatsQwen21FastWorkflow_v20Optimizers.json

    lonecatsQwen21FastWorkflow_v20Optimizers.json