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Support vae/ dir in LTXVAudioVAELoader - #16606

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@smhc smhc commented Sep 27, 2026

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Standalone LTX audio VAEs (e.g. LTX-2.5 audio VAE) ship as single files that users place in models/vae, but LTXVAudioVAELoader only listed models/checkpoints, so they were invisible to the node.

List vae/ first, then checkpoints/ (deduped), and resolve the selected file in the same order. Behavior for existing checkpoints/ setups is unchanged.

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✅ All contributors have signed the CLA. Thank you! This PR is ready to be merged.
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11-22: LGTM!

Also applies to: 27-35, 51-51, 60-60



📝 Walkthrough

Walkthrough

The audio VAE loader now lists checkpoint filenames first, followed by unique VAE-folder filenames. It adds (vae) to VAE filenames that match checkpoint filenames. A suffixed selection resolves in the VAE folder. An unsuffixed selection checks the checkpoint folder first, then the VAE folder. If those lookups fail, the loader performs a raising checkpoint lookup.


Priority: ⬇️ Low

Merge Risk: 🔵 Low · up to aea0e

A narrowly named file collision could load the wrong model; renaming either file avoids it. Ordinary checkpoint/VAE basename collisions preserve the existing checkpoint choice, so the change is otherwise mergeable.

Architecture Summary

Architecture risk: 🔵 Low · up to aea0e

The change affects 1 system.

Changed systems: comfy_extras

Architecture concerns
No architecture-level concerns identified.

Review details

Systems and components

  • observed — comfy_extras (service) was modified; 1 changed file maps to changed impact.

Before / after behavior

  • observed — Modified behavior in comfy_extras/nodes_lt_audio.py: Added a filename-list helper that preserves checkpoint names first, then appends unique VAE names; VAE names colliding with checkpoint names are added with a (vae) suffix.
  • observed — Modified behavior in comfy_extras/nodes_lt_audio.py: Added path resolution that directs suffixed names to the VAE folder and checks checkpoints before VAE for unsuffixed names. If those lookups fail, it falls back to a raising checkpoints lookup.
  • observed — Modified behavior in comfy_extras/nodes_lt_audio.py: The loader’s selector now uses the combined filename list instead of listing only checkpoint files.
  • observed — Modified behavior in comfy_extras/nodes_lt_audio.py: The loader now resolves the selected name through the new helper instead of requiring a checkpoints path.

🚥 Pre-merge checks | ✅ 4 | ❌ 1

❌ Failed checks (1 warning)

Check name Status Explanation Resolution
Docstring Coverage ⚠️ Warning Docstring coverage is 0.00% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 4 functions across 1 files. Write docstrings for the functions missing them to satisfy the coverage threshold.
✅ Passed checks (4 passed)
Check name Status Explanation
Title check ✅ Passed The title clearly and concisely describes the main change: adding support for the vae/ directory in LTXVAudioVAELoader.
Description check ✅ Passed The description is directly related to the changes. It explains the missing models/vae files, the listing order, deduplication, resolution behavior, and compatibility with existing checkpoint setups…
Linked Issues check ✅ Passed Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check ✅ Passed Check skipped because no linked issues were found for this pull request.


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In @comfy_extras/nodes_lt_audio.py:
- Around line 22-25: Update the combined model selector and the lookup using
name with folder_paths.get_full_path so colliding filenames have distinct
selector values: keep the existing filename value resolving to the checkpoint,
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Comment thread comfy_extras/nodes_lt_audio.py Outdated
@smhc

smhc commented Sep 27, 2026

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I have read and agree to the Contributor License Agreement

comfy-legal added a commit to Comfy-Org/comfy-cla that referenced this pull request Sep 27, 2026
@smhc
smhc force-pushed the ltx-audio-vae-dir branch from aea0eea to 7d3d38f Compare October 10, 2026 23:54

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