Euclid is a merged model trying to get as close to realistic as I can. Currently, there are a number of models in the merge, with version 6 being the most recent official release. Version 6 increases the realism to a new level, not only that, there is an Ultra version which adds more contrast and details whilst fixing the dreaded weird eye problem.

One thing I'm happy to celebrate about my model as that it is a lot more racially friendly and will more often than not, produce people who are not Caucasian, in fact around 60%-70% of the time it will produce people of colour in my testing at least. If you find it's not producing Caucasian people, just add either white or Caucasian to the prompt. It's also very good at aging people so adding an age can make a big difference.

The only thing V5 doesn't do well most of the time are eyes, if you don't get decent eyes try adding perfect eyes or round eyes to the prompt and increase the weight till you are happy. V6.1 and V6.1 Ultra have fixed this problem.

What is V6.1?

V6.1 is the final step for Euclid. Yes, that's right, this is the final version. Months of hard work, learning, merging, all to get to this point. There will be side versions like Ultra and Cinematic, but this is it as far as the base version goes. I've pushed SD 1.5 as far as it will go. I hope you all enjoy.

What is V6.1 Ultra?

V6.1 Ultra takes the foundation of V6.1 and enhances it. You can expect more realistic colours, better contrast, and better texture. As well as fixing the dreaded weird eye problem that has plagued my models in the past. If you are looking for the most realistic version then I would highly recommend this.

What is V6.1 Cinematic?

V6.1 Cinematic is exactly what it sounds like. It's a more cinematic and sometimes dramatic version of V6.1 Ultra. So expect enhanced lighting and shadows as well as a more dynamic feeling image. It does sacrifice some of the realism from V6 Ultra to achieve this but I feel the trade-off it worth it.

Recommend for V6.1: Huen or DPM++ 2M SDE Karras, Steps: 20-45, Hires fix 0.15 - 0.4, CFG 6 - 8.

I would also recommend using epi_noiseoffset for V4 - https://civitai.com/models/13941?modelVersionId=16576

I would recommend using Theovercomer8's Contrast Fix for V5 - https://civitai.com/models/8765?modelVersionId=10638

I would also recommend using difConsistency RAW VAE