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[feat] v2 registry: LTX-2/2.3 repo aliases -> by-id resolution 63/64

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Adds explicit ModelEntry aliases for the LTX-2 (FastVideo/LTX2-Diffusers,
LTX2-base, Lightricks/LTX-2 -> single-stage base) and LTX-2.3 (LTX2.3-Diffusers,
LTX2.3-Distilled-Diffusers, LTX2.3-base, Lightricks/LTX-2.3, lightricks/ltx-2.3
-> the distilled joint-A/V card) naming variants of already-ported LTX
checkpoints (the arch fallback also resolves LTX2Transformer3DModel from a root).

v2 now resolves 63/64 fastvideo registry ids by exact id; the only remaining id,
FastVideo/Wan2.1-VSA-T2V-14B-720P-Diffusers, is ENV-BLOCKED (VSA Sparse-Linear
Attention kernels require nvcc, not built in this bring-up; it arch-resolves to
the base Wan card but needs the VSA kernel build to run faithfully).

v2 mini 240 passed, 2 skipped; pre-commit clean.
This commit is contained in:
SolitaryThinker
2026-07-04 17:15:34 +00:00
committed by Peiyuan Zhang
parent 39580ad73a
commit f4af3cf886
1 changed files with 8 additions and 0 deletions
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v2/registry.py
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@@ -164,6 +164,14 @@ def _entries() -> list[ModelEntry]:
ModelEntry(("Davids048/LTX2-Base-Diffusers", ), build_ltx2_base_card, build_ltx2_base_program),
# LTX-2.3 distilled — single-stage, JOINT text->video+audio (separate connectors + gated attn):
ModelEntry(("FastVideo/LTX-2.3-Distilled-Diffusers", ), build_ltx2_3_card, build_ltx2_3_program),
# LTX-2 / LTX-2.3 repo aliases (naming variants of the already-registered LTX checkpoints; the
# arch fallback also resolves LTX2Transformer3DModel from a checkpoint root, refining base-vs-
# two-stage by the spatial_upsampler). LTX-2 -> single-stage base; LTX-2.3 -> the distilled joint
# A/V card (a non-distilled 2.3 base checkpoint reuses it — override num_steps for many-step).
ModelEntry(("FastVideo/LTX2-Diffusers", "FastVideo/LTX2-base", "Lightricks/LTX-2"), build_ltx2_base_card,
build_ltx2_base_program),
ModelEntry(("FastVideo/LTX2.3-Diffusers", "FastVideo/LTX2.3-Distilled-Diffusers", "FastVideo/LTX2.3-base",
"Lightricks/LTX-2.3", "lightricks/ltx-2.3"), build_ltx2_3_card, build_ltx2_3_program),
# Cosmos-Predict2-2B-Video2World — EDM-Karras denoiser (new CosmosDenoiseLoop + CosmosDiT adapter),
# reusing the Wan VAE adapter + T5. Registered for t2v (video2world conditioning threads later).
ModelEntry(("nvidia/Cosmos-Predict2-2B-Video2World", ), build_cosmos2_card, build_cosmos2_program),