v0.3.33

Comfy-Org/ComfyUIv0.3.33May 8, 2025by github-actions[bot]

AI Summary

This release introduces the ACE-Step model and various improvements for LTXV and ACE models, including memory estimation, tiling support, and Japanese character support.

Key Highlights

Initial implementation of ACE-Step model
Improved memory estimation for LTXV 13B model
ACE model now supports Japanese characters (Hiragana and Katakana)
ACE VAE tiling support added
Refusal to load API nodes on old PyAV versions

New Features

ACE-Step model implementation
Experimental lyrics strength for ACE
Japanese character support for ACE
ACE VAE tiling support
Detection code for LTXV models without config

Full Release Notes

## What's Changed
* Change chroma to use Flux shift. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7961
* Better mem estimation for the LTXV 13B model. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7963
* Initial ACE-Step model implementation. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7972
* Refuse to load api nodes on old pyav version. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7981
* Experimental lyrics strength for ACE. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7984
* Detection code to make ltxv models without config work. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7986
* Make torchaudio not a hard requirement. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7987
* Adjust memory estimation code for ACE VAE. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7990
* Make japanese hiragana and katakana characters work with ACE. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/7997
* Make ACE VAE tiling work. by @comfyanonymous in https://github.com/comfyanonymous/ComfyUI/pull/8004


**Full Changelog**: https://github.com/comfyanonymous/ComfyUI/compare/v0.3.32...v0.3.33