This SD 1.0XL-Checkpoint is capable to produce nearly everything.. It is very good creating extremly realistic pictures, anime and art. But beware! This model is still untamed... uncensored.. be aware of that!
Hephaistos NextGen DPO is a merge between my own Hephaistos NextGen Tensor 1.0 model https://tensor.art/models/671019109045166017 and the new DPO model https://huggingface.co/mhdang/dpo-sdxl-text2image-v1 .
Also it got some parts of freek22s model Gleipnir
https://civitai.com/models/175094/gleipnir
Lately I also experimented with LCM and created some hybrid models with it. This model here also benefits from its LCM part.
This stands for Direct Preference Optimization. Its basically a very optimised training method for getting better outputs..
Here you can get the full scientific paper: https://arxiv.org/abs/2311.12908
Basically LCM allows models to operate in much lower cfg and steps.. this way this model is faster than normal checkpoints. I've tested in with A1111 and comfy.
Here is a cfg/step example from my tests with the DPM++ SDE sampler (other sampler can work a bit differently. Keep that in mind) klick here https://civitai.com/posts/1053066
As you can see it has a wide range starting from 1 cfg and about 4-5 steps.. But I for a better quality I recommend using at least 8 steps and 3- 8cfg. As you can see the quality can increase with higher steps. Use clip Skip 2.
A prototype Comfy UI workflow can be downloaded here: https://civitai.com/articles/3492/hephaistos-nextgen-dpo-prototype-workflow
I highly recommend use one of the following samplers: DPM++ SDE Karras, DPM++ SDE, DPM++ 2S a Karras, DPM++ 2S a
3-7+ cfg, 7-12+ steps, Clip Skip 2, use a highresfix with 0.2- 0.5 denoise and use the foolhardy-Upscaler.
DPM++ 2M, LMS, Heun, DPM++ 2M SDE, DPM++ 2M SDE Heun, DPM fast
Thanks to the LCM Team for making all this possible. Here is their website: https://latent-consistency-models.github.io/
Thanks to the creators of the DPO model https://huggingface.co/mhdang/dpo-sdxl-text2image-v1 .
Thanks to Freek22, Check out his models too... https://civitai.com/user/freek22
This model is trained on my first Hephaistos NextGen was Colossus Project XL so I will credit all creators (the stuff I used for Colossus Project XL). Those works are still inside the model somehow...
https://civitai.com/models/139565?modelVersionId=154593
https://civitai.com/models/120741?modelVersionId=163104
Those resources I used to create Hephaistos, Talos and Asmodeus:
https://civitai.com/models/122793/fenrisxl
https://civitai.com/models/118114?modelVersionId=128795
https://civitai.com/models/118794/firstnsfwforsdxlv1
https://civitai.com/models/118427/perfect-eyes-xl
https://civitai.com/models/117603?modelVersionId=127928
https://civitai.com/models/127842?modelVersionId=139902
I highly recommend use one of the following samplers: DPM++ SDE Karras, DPM++ SDE, DPM++ 2S a Karras, DPM++ 2S a3-7+ cfg, 7-12+ steps, Clip Skip 2, use a highresfix with 0.2- 0.5 denoise and use the foolhardy-Upscaler.Don't use following samplers:DPM++ 2M, LMS, Heun, DPM++ 2M SDE, DPM++ 2M SDE Heun, DPM fast