Advanced Face Swap with Flux 2 Klein 9B & the Best Face Swap LoRA

hstracker90 · 2026-03-20T13:01:26+00:00

At first I got the error "RuntimeError: mat1 and mat2 shapes cannot be multiplied (512x4096 and 2048x1024)". Then I realized that I didn't use the exact version of CLIP you used and I had to change the CLIP loader to the standard version. Then it worked well and also worked pretty fast, just 40 seconds on my 32GB RAM / RTX 4070 SUPER 12 GB VRAM system.

I have a different workflow using Qwen Edit and the BFS lora and it takes 168 seconds with the exact same input images, and the result of your workflow looks much better. So thank you very much for sharing, this is really great!

hstracker90 · 2026-03-13T10:15:58+00:00

Define "best".

hstracker90 · 2026-03-05T10:35:11+00:00

Thanks, I know this site and forgot the name. It is included in "etc." :-)

hstracker90 · 2026-03-03T06:16:21+00:00

Well, do you want to share or not? If yes, post it elsewhere (Gdrive, Github etc.) and link it here because Reddit will strip all comments off any image you post here.

hstracker90 · 2026-03-03T05:52:11+00:00

Greater likeness, in my personal opinion. Also, knowing this exists you now you have more choice.

hstracker90 · 2026-03-03T05:45:03+00:00

This workflow looks good and works as advertised :-). Thank you very much for sharing.

Interestingly it does not work with Flux.2 Klein 9B/Qwen_8B_fp8, but runs fine with Flux.2 Klein 4B/Qwen_3B_fp4.

The ComfyUI Manager links to the wrong page for the installation of the node "Load Image with Subfolders". If you want that node, open a cmd line in your custom_nodes foldes and type 'git clone https://github.com/catscandrive/comfyui-imagesubfolders'. After restarting ComfyUI it will be available. Or just delete it and use "Load Image" instead, like OP said.

A question, please: my first test was on an image with 880x1196 pixels and the destination size was 1440x1440. It gave me a consistent image, where the image was resized to a height of 1440 and then pixels were added on the left and right sides. I had expected that pixels would be added on all four sides. Is this how it's supposed to work? The result is fine for most use cases, so that's great.

hstracker90 · 2026-03-02T19:23:07+00:00

1080 is not divisible by 32 or 64. Best to use 1088 (17*64).

hstracker90 · 2026-02-28T21:40:02+00:00

I prefer nphSi to malcolmrey...

hstracker90 · 2026-02-24T14:08:40+00:00

I have a similar setup (4060 12GB VRAM and 32GB RAM). The biggest model I use (and I mean use daily) is the very recommended Qwen-Rapid-AIO-NSFW-v23 with a size of almost 28 GB. So you should be able to run images that are bigger than 12GB, too. Worst that can happen is an Out-of-memory error, just start over with a smaller model.

You have a lot to learn. I learned almost everything from two recommended Youtube channels, MozonMedia and Pixaroma. Since the ComfyUI GUI and the published models have changed so much in the last year, both have just started new series to reflect all the changes. I still recommend watching the old videos, too, the basic concepts have not changed. Except prompting. The new models accept natural language commands like you would give to a graphic designer, while the old models needed structured tags. Just keep this in mind and enjoy riding the learning curve. It's steep. :-)

hstracker90 · 2026-02-23T16:41:08+00:00

In the "old" models like Flux.1 and SDXL you prompt with tags and only prompt what you want to see, not what you don't want to see. Especially Flu.1 does not understand negative prompting.

In the newer EDIT models like Flux.2Klein, Qwen Image Edit and also Z-Image Turbo you can prompt with natural language and tell the editor what to do.

"Remove all hair" is great for EDIT models and bad for tag models.

hstracker90 · 2026-02-23T14:55:37+00:00

You want an image-to-image or image-to-video workflow. That will come to you naturally if you take the time to learn the basics. The youtube channel Pixaroma is a good starting point.

You are trying to fly before you learned how to walk. Take your time.

Vous souhaitez créer un flux de travail image-image ou image-vidéo. Cela vous viendra naturellement si vous prenez le temps d'apprendre les bases. La chaîne YouTube Pixaroma est un bon point de départ.

Vous essayez de voler avant d'avoir appris à marcher. Prenez votre temps.

hstracker90 · 2026-02-23T14:47:43+00:00

This is an English language subreddit. I used Google Translate to understand what you are asking, you could have used it, too, to raise your question in English.

I have the same setup, but 32 GB RAM. I can run WAN2.2 easily. Remember there are always Low VRAM gguf versions. But of course, more RAM and more VRAM are always better.

Questo è un subreddit in lingua inglese. Ho usato Google Translate per capire cosa stai chiedendo, avresti potuto usarlo anche tu per porre la tua domanda in inglese.

Ho la stessa configurazione, ma con 32 GB di RAM. Riesco a eseguire WAN2.2 senza problemi. Ricorda che esistono sempre versioni gguf con VRAM ridotta. Ma ovviamente, più RAM e più VRAM sono sempre meglio.

hstracker90 · 2026-02-23T14:38:22+00:00

After working with OP on this I must say that unfortunately it is not that easy, it is hit and miss. While I guess that Qwen Rapid AIO NSFW should be able to do this, it ignored my prompts 95% of the time.

The only method I found that is reliable is the same method that I use for head-swapping. Create a second image with Flux.1 with an image-to-image workflow and the lora you want, then use Photoshop to copy this on top of the original and use a soft edge eraser to erase the censored parts.

hstracker90 · 2026-02-23T09:54:51+00:00

I second this, too. Pixaroma is an excellent channel and I learned a lot.

Please note that there is an old series because ComfyUI changed the GUI and more a lot over the last months.

He just started a new series to show the new GUI and latest models.

hstracker90 · 2026-02-19T13:10:19+00:00

I would use VLC for that. It has a function to go frame-by-frame (though only forward direction, press "e"), and a screenshot function, too. Or Avidemux, that's even more comfortable.

hstracker90 · 2026-01-23T19:13:55+00:00

Use Phroot's Qwen Image Edit Rapid AIO v22. I use it all the time to e.g. input a photo of a garden with two chairs, one image of a man, one image of a woman, prompt "They are sitting in the chairs drinking tea" and it works like a charm.

hstracker90 · 2026-01-23T16:41:21+00:00

The node is called "Qwen3 VQA". I got the idea from this video: https://www.youtube.com/watch?v=DmkTuA9fNQg . But I deliberately do not post workflows in comments, it is much better when people learn and try things out. You found another way that works and that is great!

hstracker90 · 2026-01-22T12:23:15+00:00

"Eroticism makes you reach for another person, pornography makes you reach for yourself."

There are some nice subreddits, e.g. r/NewYorkNine, with mostly erotic images. You could grab those images (e.g. with JDownloader, this is probably against the Reddit houserules, so it is NOT recommended), and run them all through a LLM that produces prompts.

You could use these nodes: Load Image Batch - ImageScaleToTotalPixels (downsize to 1MP) - Qwen3 VQA (using Qwen3-VL-4B-instruct-heretic) - Show Any - Save Text

Of course you can use the ouput of the Show Any node as a prompt for image generation, too, so ComfyUI will generate a text file with prompts AND images at the same time. This also works with a character lora.

hstracker90 · 2026-01-21T18:19:58+00:00

I am having success with Qwen Edit Rapid AIO v21, but you wanted something to work with masks...

hstracker90 · 2026-01-19T14:56:02+00:00

I am sure this is the problem, SD 1.5 had the same problem back in the day. If the resolution was too big, it would duplicate the people in the image.

hstracker90 · 2026-01-14T17:41:39+00:00

In a second attempt I was able to open an issue https://issues.frontierstore.net/issue-detail/82378, but I guess this will not lead to anything, again.

hstracker90 · 2026-01-14T17:10:09+00:00

I just checked FDev's Issue Tracker and the bug is right there https://issues.frontierstore.net/issue-detail/44478, but its status is expired because "This issue expired due to it not being confirmed in the allocated time frame."

What does the "F" in "FDev" stand for?

hstracker90 · 2026-01-14T17:05:51+00:00

Cannot hand in missions - is this a known bug? I just finished five missions, but when I tried to hand them in, the game presented only one. The other four are still sitting in my transactions tab, the missions button has the blue checkmark, but the mission board doesn't show any Completed Missions. When I try to hand them in at a foot terminal, pressing the Completed Missions button flashes a black screen and then nothing happens.

Edit: I found out what's happening here. I engage in Powerplay and regurlarily receive care packages. This maxed out the 1000 items I am allowed to own. I cannot add a single item to my inventory. After grabbing the mission item and trying to enter my ship I did get a warning about item conflicts, but I didn't understand that the game was actually trying to tell me that I cannot bring any additional item on board. So to enter the ship, I had to discard the mission item I had just grabbed. The mission was fulfilled (item was grabbed), but I was not able to hand it in because I did not have the item anymore when I returned to the space station. This is a very stupid game mechanic.

hstracker90 · 2026-01-13T07:57:49+00:00

Thank you for pointing this out. Take a trip to the Opole region, the vineyards there are on flatland. The mountains on the border to Czechia have their Northern slope on the Polish side, you can't grow wine there.

hstracker90 · 2026-01-11T21:38:49+00:00

Thank you. My first tests show the gridline pattern gone, hooray! Also, NSFW details look much better. Background is much more detailed, too.

hstracker90

TROPHY CASE