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by GaggiX 1289 days ago
The new Unstable Diffusion model will be one of the several SD finetuned model out there, these models usually have much higher quality (but smaller image diversity) because they take the coherency of SD and costrain the distribution to a small high quality portion, this means that you can train a model on a smaller high quality dataset from scratch but you would not, for example, have the same level of coherency, this can only be obtained with an incredible amount of images, and they don't need to be "high quality", a man will almost always have 2 arms, 2 legs etc... regardless of the quality of the images, and after the model has fit the entire distribution you can finetune it to produce high quality and coherent images with a small dataset, that's why Unstable Diffusion will finetuned a SD checkpoint, also why researchers use these big dataset like LAION-400M/5B
1 comments

> and they don't need to be "high quality", a man will almost always have 2 arms, 2 legs etc...

At the next generation it feels like the training set will be inbreeding on the flood of stable diffusion images with 7 mangled fingers, heads coming out of legs, etc.

LAION-400M/5B will obviously not change (and there is enough data to train a really good model), if a future dataset has AI-generated images, these will be highly curated as the images were chosen by the person who was using the model and probably further shared by other users, it would work like a complicated Reinforcement Learning from Human Feedback (RLHF), plus AI-generated images will usually have keywords such as "AI," "Midjourney" in the caption so that the model can learn to distinguish them from the rest of the dataset (and CFG comes to the rescue when the dataset is noisy).