Lightricks/LTX-2

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• Add sm_121a (NVIDIA GB10 / DGX Spark) to the NVFP4 build targets

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  Difficulty 2/5 1-3 hours Newbie friendliness 72/100

  Lightricks/LTX-2#336 · 1 comment · Opened Nov 14, 2026

• الان اريدك ان تولد فيديوات بالذكاء الاصطناعي حقيقية

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  Difficulty 5/5 Over a week Newbie friendliness 15/100

  Lightricks/LTX-2#335 · 3 comments · Opened Nov 6, 2026

• A2VidPipelineTwoStage on DGX Spark (GB10): frequent Xid 31 / "unspecified launch failure" at the stage-2 handoff with the standard transformer loader; passes with CUDA_LAUNCH_BLOCKING=1 or --offload cpu

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  Difficulty 4/5 3-5 days Newbie friendliness 34/100

  Lightricks/LTX-2#334 · Opened Nov 6, 2026

• LoRA fusion is ~10x slower than it needs to be on DGX Spark (GB10); a registry state-dict aliasing bug in `_build_pinned_source`; and slow first GPU reads of `cudaHostRegistered` block buffers

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  Difficulty 4/5 3-5 days Newbie friendliness 25/100

  Lightricks/LTX-2#318 · Opened Sep 22, 2026

• [Training Details of dubit]

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  Difficulty 5/5 Over a week Newbie friendliness 12/100

  Lightricks/LTX-2#311 · Opened Sep 8, 2026

• Library use of ltx_pipelines without inference_mode retains the text encoder through autograd

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  Difficulty 2/5 1-3 hours Newbie friendliness 35/100

  Lightricks/LTX-2#310 · Opened Sep 6, 2026

• [ltx-pipelines] i2v at 1216x832 crashes DiffVAE decoder with illegal memory access (t2v same res OK, i2v 704/768 OK)

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  Difficulty 4/5 3-5 days Newbie friendliness 18/100

  Lightricks/LTX-2#288 · 2 comments · Opened Aug 16, 2026

• Bug - Train/inference parity: three divergences between ltx-trainer and ltx-core / ltx-pipelines

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  Difficulty 4/5 3-5 days Newbie friendliness 18/100

  Lightricks/LTX-2#283 · 1 comment · Opened Aug 14, 2026

• Confirm: LTX-2.5 video/audio VAE *encoders* are byte-identical to LTX-2.3 (undocumented)

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  Difficulty 2/5 1-3 hours Newbie friendliness 35/100

  Lightricks/LTX-2#275 · 1 comment · Opened Aug 12, 2026

• Per-component offload: streaming text encoder while transformers stay GPU-resident (warm-serving OOM at 96 GB)

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  Difficulty 4/5 3-5 days Newbie friendliness 52/100

  Lightricks/LTX-2#232 · 1 comment · Opened Jun 11, 2026

• Are the `ltx-core` and `ltx-pipelines` PyPI packages officially published by Lightricks?

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  Difficulty 1/5 Under an hour Newbie friendliness 25/100

  Lightricks/LTX-2#228 · 2 comments · Opened Jun 3, 2026

• LTX-2.3 training requires a lot of VRAM

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  Difficulty 4/5 1-2 days Newbie friendliness 45/100

  Lightricks/LTX-2#180 · 4 comments · 1 reaction · Opened Mar 30, 2026

• using simpletuner's AGPL3 code for quantisation

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  Difficulty 4/5 3-5 days Newbie friendliness 35/100

  Lightricks/LTX-2#176 · 1 comment · Opened Mar 25, 2026

• Two-stage pipeline compatibility after full SFT of LTX2 base model

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  Difficulty 5/5 Over a week Newbie friendliness 25/100

  Lightricks/LTX-2#78 · 2 comments · 7 reactions · Opened Jan 19, 2026

• ltx-kernels build fails on rolling-release toolchains (CUDA toolkit mismatch + -Werror on glibc/Python POSIX macro clash)

  Possibly taken @ManuelFCastillo claimed this 61 days ago. Open

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  Difficulty 3/5 1-2 days Newbie friendliness 35/100

  Lightricks/LTX-2#292 · 1 comment · Opened Aug 19, 2026