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Qwen Image 2.1

740 points · 199 comments · jmillikin

  1. trentor · · focus · HN ↗
    They finally fixed their VAE. It really held back their models over the last 2 years.

    EDIT: It still produces artifacts it's better but unusable for production work. In midvalues you will see a slight dot pattern.

    1. mdp2021 · · focus · HN ↗
      > finally fixed their VAE

      Can you share the sources?

      1. trentor · · focus · HN ↗
        It's right there in the hugging face link?

        latents go from 16ch @ 8x compression to 64ch @ 16x, so roughly the same total latent budget but much more channel heavy. It’s also deeper/wider, and the old 2x2 transformer patching is gone.

        On some images it still produces artifacts but can't say if it's the transformer or the VAE yet.

    2. Ristovski · · focus · HN ↗
      > In midvalues you will see a slight dot pattern.

      Is this not simply some sort of watermark instead of an artifact?

      1. trentor · · focus · HN ↗
        No, it's probably their rope implementation. They had a similar problem with the old qwen image but to be sure it needs some digging.
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