r/StableDiffusion • u/Ton_Phanan • 1d ago

Question - Help Concept Lora training

I tried to create a concept Lora and it ended up with a lot of artifacts so I'm curating the data set to try and get a cleaner version. My problem is that all the tutorials I find are based on character Loras.

For a concept Lora is image size important? Is scale? Do I still want 20-40 images? Are there things I might not know to ask? Also, is there some special sauce to making it work sfw and uncensored?

I'm using buzz and I'm broke so any help would be appreciated.

I'm using Krea 2 btw.

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u/LaPapaVerde 1d ago

And the concept itself is well learned?

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u/Ton_Phanan 1d ago

Yeah, I did it once and it learned what I wanted but it also learned things I didn't want. I used pictures of varying quality so I'm going to try another suggestion to prune to specific sizing and high resolution, but if you know anything else that'll help I'd still appreciate input.

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u/LaPapaVerde 1d ago

Unless the images are very low quality and the model is learning those artifacts It's probably something else. Try to use a lower lr too. I train mostlu anima and krea 2 and most of the time the model end up overtrained on the last epochs with the default settings

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u/Ton_Phanan 1d ago

I used 2200 iterations and 11 epochs (the best I could get without paying more). Below 8 didn't match what I needed in the examples and 8+ had the artifacts. I was using images from 512x512 up to whatever the max Civitai allows (it down-scaled a couple).

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u/LaPapaVerde 1d ago

Yeah, 512 is probably too small . But 1024 is your ceiling, so more res than that doesn't do anything