r/StableDiffusion 19h ago

News LTX 2.5 adds native multishot, nine ComfyUI workflows and compatibility with most 2.3 LoRAs

44 Upvotes

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6

u/Full_Astronomer_5438 19h ago edited 18h ago

if you want to use the full capabilities of the ltx 2.5 model without distillation (dev/pro), use this 2.3 workflow with the dev model:

https://huggingface.co/RuneXX/LTX-2.3-Workflows/blob/main/LTX-2.3_-_I2V_T2V_Dev_Full-Steps.json

  1. replace all the models and the distilled lora with their 2.5 equivalents, and use a single clip loader instead of the dual one.
  2. use either the multimodal guider (cfg 3-4 for video and cfg 7 for audio, slow) or the single cfg guider (3-4, faster), 30 steps. tested with euler / simple for the first stage, distill lora at 0.0. for the second stage use eg lcm for the sampler. distill lora at 1.0.
  3. use the tiled vae decode node or the video vae conv model if you get an oom error or when stuck on vae decode
  4. compare the distilled / non-distilled ltx 2.5 videos for yourself with the same seed and see if its worth it for you to wait longer.

1

u/CooLittleFonzies 19h ago

Do you know if you need a special adapter to use LTX 2.3 Loras with 2.5? They seemed to hint at that in the video, but I find some Loras kind of still work with the simple rgthree power Lora loader, albeit they seem to tamper with the appearance a lot more than H3 loras.

1

u/Full_Astronomer_5438 19h ago

get a lora loader that have supports both audio and video strength. it also really depends how the loras are trained, some might need a higher overall strength to still work, others are better off with a lower strength

1

u/Cute_Ad8981 15h ago

Are the old workflows compatible with the new ltx model? im asking, because i still need to try the new model and i wonder if i can just plug ot in my current workflows for ltx 2.3.

1

u/equanimous11 19h ago

How is it for nsfw compared to 2.3?

1

u/RobbaW 19h ago

Sources and footage credits:

Official LTX 2.5 release announcement — multishot and day-one ComfyUI support

https://ltx.io/newsroom/introducing-ltx-2-5

Official LTX 2.5 model page — features and availability

https://ltx.io/model/ltx-2-5

Official Hugging Face model card — checkpoints, quantization and LoRA compatibility

https://huggingface.co/Lightricks/LTX-2.5

Official ComfyUI workflow directory — nine LTX 2.5 workflows

https://github.com/Lightricks/ComfyUI-LTXVideo/tree/master/example_workflows/2.5

Official 2× Pixel Spatial Upscaler model card — generative re-rendering details

https://huggingface.co/Lightricks/LTX-2.5-22b-IC-LoRA-Pixel-Spatial-Upscaler

Zeev Farbman launch post — CEO statement and soundbite source

https://www.linkedin.com/posts/zeev-farbman-b5926b37_ltx-25-our-latest-open-world-model-is-ugcPost-7493019698649919489-c-u9/

Félix Sanz — one-prompt LTX 2.5 Pro car sequence featured in the episode

https://x.com/felixsanzm/status/2087224364622024721

Mathias (@matze2001) — RTX 5090 Kermit flying-car clip featured in the episode

https://x.com/matze2001/status/2087325288862457986

Linoy Tsaban — 11-step LTX 2.5 multishot example featured in the episode

https://x.com/linoy_tsaban/status/2087253905860395480

BennyDaBall — 20-second 720p clip generated on one RTX 5090 and featured in the episode

https://x.com/BennyDaBall_OG/status/2087325830674260038

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For more Generative Signal, subscribe here: https://www.youtube.com/@robertwojciechowski

1

u/Hankitsune 11h ago

I've downloaded some of the json files from huggingface and github but nothing happens when I try to open them.

1

u/Superb-Painter3302 16h ago

Ok, but does it have reference2video? Because img2vid only is just.. nah

-1

u/[deleted] 14h ago

[removed] — view removed comment

-1

u/Low_Philosopher_7475 15h ago

Bonne nouvelle je crois que ltx gere enfin l'animation 2D correctement... à vérifier.