{"type":"post","id":"ostris-releases-primal-vae-an-80m-parameter-2x-b5aacb","slug":"ostris-releases-primal-vae-an-80m-parameter-2x-b5aacb","title":"Ostris releases Primal VAE, an ~80M-parameter 2x autoencoder with 1- or 2-channel latents that patch into Flux.1/Flux.2 latent shapes","description":"Ostris has released Primal VAE, an approximately 80-million-parameter autoencoder intended for diffusion pipelines using Flux.1 or Flux.2-shaped latents.","retrieval_nugget":"Ostris has released Primal VAE, an approximately 80-million-parameter autoencoder intended for diffusion pipelines using Flux.1 or Flux.2-shaped latents. Its main proposition is architectural: retain a shallow, low-channel latent representation, let the diffusion transformer perform patching, and eliminate latent scaling and shift constants.","published_at":"2026-10-31","updated_at":"2026-10-31","record_date":"2026-10-31","date_kind":"published_at","topics":["generative-media","multimodal"],"entities":["Ostris","Primal VAE","Flux.1","Flux.2","Diffusers","ai-toolkit"],"related_patterns":["generative-media-becomes-application-infrastructure"],"novelty_label":"new_fact","what_changed":"Ostris released Primal VAE, a small 2× autoencoder whose 1- or 2-channel latents can be patched into Flux.1/Flux.2 latent shapes; the archive covers other Flux model releases.","prior_refs":["memory:4b1462fe-ce71-8936-a418-711724ea2beb","memory:4b6f562a-6b87-81fc-ae59-8de8a1774064"],"source_url":"https://huggingface.co/ostris/primal_vae","source_urls":["https://huggingface.co/ostris/primal_vae"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:ostris-releases-primal-vae-an-80m-parameter-2x-b5aacb","status":"published","visuals":[],"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/ostris-releases-primal-vae-an-80m-parameter-2x-b5aacb/","markdown":"https://newruntime.com/posts/ostris-releases-primal-vae-an-80m-parameter-2x-b5aacb.md","json":"https://newruntime.com/posts/ostris-releases-primal-vae-an-80m-parameter-2x-b5aacb.json"},"next_reads":[{"type":"topic","path":"/topics/generative-media/","url":"https://newruntime.com/topics/generative-media/","title":"Generative Media","reason":"Explore the generative-media topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/generative-media.md","json_url":"https://newruntime.com/topics/generative-media.json"},{"type":"topic","path":"/topics/multimodal/","url":"https://newruntime.com/topics/multimodal/","title":"Multimodal","reason":"Explore the multimodal topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/multimodal.md","json_url":"https://newruntime.com/topics/multimodal.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}