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v0.12.3

Comfy-Org/ComfyUIv0.12.3Feb 5, 2026by github-actions[bot]

AI Summary

This release focuses on stability improvements for ACE Step 1.5, including fixes for NaN issues, text encoder slowness, and enhanced reference audio support. It also introduces new 3D file handling capabilities and audio processing features, alongside critical fixes for safetensors loading and checkpoint saving.

Key Highlights

  • Multiple ACE Step 1.5 improvements: fixed NaN issues, text encoder slowness, and disabled sage attention
  • New VAE tiled decode node for audio processing workflows
  • Enhanced 3D file handling with File3DAny output/input support in Load3D and SaveGLB nodes
  • Critical stability fixes for safetensors loading crashes and checkpoint saving
  • Added LLM sampling options and reference audio support for ACE Step 1.5

New Features

  • File3DAny output support in Load3D node and File3DAny input support in SaveGLB node
  • VAE tiled decode node for audio
  • LLM sampling options for ACE Step 1.5
  • Reference audio support for ACE Step 1.5

Full Release Notes

## What's Changed
* Fix crash on safetensors load for some 3rd party Models by @rattus128 in https://github.com/Comfy-Org/ComfyUI/pull/12266
* mp: Fix checkpoint saving by @rattus128 in https://github.com/Comfy-Org/ComfyUI/pull/12268
* add File3DAny output to Load3D node; extend SaveGLB to accept File3DAny as input by @bigcat88 in https://github.com/Comfy-Org/ComfyUI/pull/12276
* Fix ace step nan issue on some hardware/pytorch configs. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/12289
* Try to fix ace text encoder slowness on some configs. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/12290
* Add llm sampling options and make reference audio work on ace step 1.5 by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/12295
* Disable sage attention on ace step 1.5 by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/12297
* Improvements to ACE-Steps 1.5 text encoding by @blepping in https://github.com/Comfy-Org/ComfyUI/pull/12283
* Add VAE tiled decode node for audio. by @comfyanonymous in https://github.com/Comfy-Org/ComfyUI/pull/12299


**Full Changelog**: https://github.com/Comfy-Org/ComfyUI/compare/v0.12.2...v0.12.3