Wow, this must have been a huge amount of work but it shows the relation between CFG Scale and sampling steps beautifully. I'm glad RU-vid recommended this, you got a new sub!
@SiliconThaumaturgy Dude, the meme at 2:04 of 'Katie, teh penguin of doom!!! *holds up spork*' is certainly one of the best references I've ever seen in a youtube video. How many people did you honestly expect to get that lmao. I swear it was put in here for me alone, I'm in tears.
those thumbnails need work, but im really grateful for your channel/videos! very specific and to the point! thank you for you work friend. keepem coming! 😊
Really great content here. I hope you make more - I find the analytical approach fascinating while you weave a little subjectivity into it (which is the only way you can determine whether something is 'good' or 'not good' when creating images since its subjective otuside of defined terms like sharpness, saturation, etc... I would love to see you do a video on different types of subjects (animals, landscapes, mixed subject, logos, marketing related etc) and what samplers, steps and CFG produced what you would consider the most 'reliable' good results. Since it's all subjective, it fits right into your research already but then nails you down, finally, to give a top 3 or top 5 of samplers and some small ranges for the CFG and steps - based on subject. Thanks for all you do my man!
The best channel on the topic. Only objective tests with x/y test matter, not some rando reddit flame war. Thank you! Ps you had my sub at "the doggiest dog :)"
in my experience, if your prompt/Negative prompt is not complicated and less than 100 words then 25 Sample Step + 7 CFG is good. If your Prompt/Negative Prompt is very complex and contains 300 or more words, then 50 Sample Step + 25 CFG is fine.
Still feels like CFG is a messy subject, I'm mainly don't touch CFG, Sampling method and Steps, because I have plenty of parameters to tweak already, while simultaneously praying for the decent results. Damn, the prompt alone is a major headache, considering that different models give you different outputs, Imagine taking in to the consideration Sampling method, Steps, CFG, and Dynamic Threshold for example, this is crazy
I continually refer back to this video specifically for the charts which begin at 6:36 timestamp. Maybe i should just save them as jpgs to my desktop... lol
It's low. I had to put my speak volume to 80 percent to hear clearly, when 50% on other videos is loud enough to get complaints from the neighbors. I suggest Silicon to either normalize the audio or do a test upload until the audio settings are fine tuned. Either way I am grateful for the video.
wow you could make a website with these direct matrix comparisms that could be super interesting as a cheat sheet. I only found some of those and they typically only deal with one or two samplers, or would always only use "a dog" which is kind of not a very complex cfg
It was a mystery to me why SDXL models are generally so blurry. Not anymore. It seems to me that all SDXL models are very CFG sensitive. Most models that I have tried (about 30), start to look over exposed or start to fry after CFG 2.3 - 2.7 and get very blurry at about CFG 5.0. Sometimes that is even before the scene or the pose in the image get it's approximate final form.
This doesn't seem right to me, though I only use vanilla SDXL. I've only ever used the default CFG of 7.5 and get great results. People would be losing their minds if they had to stay within the range of 2.3 - 5.0. Also, the effects you describe seem to be backwards, as the overexposed look should be on the high CFG end and the blurry, low-contrast look should be on the low end. You might be running into a bug with your software configuration.
Thank you for the video but it's very difficult to hear. I had to turn the volume up super high and then a commercial interrupted in the middle of the video and nearly blew my speakers out. It looks like you put a TON of time and effort into this video with all the experimentation with the CFG values and data you present it, so it's really unfortinite that the audio is so low.
Thanks for all of your videos! Can you please make one about prompt editing(word switching) and does it work during hi-res fix fase. Also about BREAK keyword. Thanks in advance.
I have one that includes prompt editing/word switching. It is titled "Stable Diffusion Basics - Prompt Emphasis and Blending Concepts using your prompt." It doesn't include the BREAK keyword unfortunately.
