Pixart-σ weak-to-strong training of diffusion transformer for 4K text-to-image generation.
PixArt-Σ
Weak-to-strong training of diffusion transformer for 4K text-to-image generation.
In this paper, we introduce PixArt-Sigma, a Diffusion Transformer model~(DiT) capable of directly generating images at 4K resolution.
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