H3 Image's weak detail traced to heavily compressed latent space, VAE worse than SD 1.5
ostrisai · x · 2026-11-12
AI image developer ostris explains why H3 Image struggles on detail: its highly compressed latent space makes the model efficient at generating huge images quickly with less compute, but sacrifices fine detail. A round-trip comparison of popular VAEs shows the H3 Image VAE scores worst on every metric — even below the SD 1.5 VAE.
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