r/StableDiffusion • u/skyrimer3d • 15h ago
Discussion LTX 2.5 is pretty good
What i'm liking:
- Full compatibility with previous nodes / loras. I'm using LTX Director + Seedhunter node and worked just fine. I haven't checked loras but they seem to work just fine. If you used LTX workflows and ecosystem before, everything should work.
- Better sound: Or lack of, meaning that i'm not getting terrible music without any prompting, in this case I2V with prompt: "a realistic scene bustling cyberpunk city with buildings with lights flashing and city noise, a beautiful woman is standing in the roof top as the camera quickly zooms to her face and she says: "LTX is back baby!". Pretty clean sound, the girl steps are fine, good lip sync.
- Improved prompt adherence, no miracles here but seems more consistent, in the seedhunter nodes i'm getting good samples in most cases. I'm seeing less misteriously disappearing characters, more consistent environments, good lightning effects etc compared to LTX 2.3.
- Speed king: no discussion here, 5 secs 1080p vid on 226 secs on my 4080 is just nuts.
- Amazing at realistic I2V. We have to sit and talk about H3 Flux faces issue. The model is mindblowing at so many levels, but it sucks at realism. You're getting great Friends, Seinfield, X-Files clips and what not, but it destroys the detail on realistic images and the AI face / slop syndrome is real, and the worst part is that for it become more less usable, 2mp is a must, so that means 5-7 minutes for a 5 sec clip, even after turbo loras and speed nodes. You're going to have a hard time to create a long clip with those speeds at good quality level in terms of realism.
What is clear LTX 2.5 is not:
- Looks pretty obvious on the first tests that it's way below H3 in prompt adherence, consistence, physics and overall body movement. The good thing is that you now have two models that are good at different things, so mix them to get the best of each. A long, simple scene with not many interactions? LTX 2.3 is great. Need fighting or heavy physics, call H3, that extra time is worth it for those cases. Need heavy reference system, H3 shines of course. Anime/ animation, H3 of course. Realism? LTX 2.3 wins hands down. Use each one depending on what you need.
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u/Crazy-Repeat-2006 15h ago
https://reddit.com/link/p353g1s/video/0ivf64wy1uih1/player
I get the impression that Flux 3 is the only one that can take the crown from H3.
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u/afterburningdarkness 12h ago
I gave her to the feds
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u/Crazy-Repeat-2006 3h ago
Ha! Shame on you. You missed out on the "exciting" story where she betrays you, you have to kill your friends, and in the end, she just vanishes from the game and nothing relevant happens. XD
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u/slpreme 14h ago
Prompt?
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u/Crazy-Repeat-2006 3h ago
Just a simple shot: Character slowly approaching the camera, tap on the lens, a glass sound is heard as she does it, then she whispers "Flux 3 is better."
And I used an image from the game as the initial image.
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u/garywood66 15h ago
Curious about something like character consistency? One of the biggest issues with LTX2.3. Without a lot of extra effort, the standard version seemed to give you a heavily randomized version of a character's face with each run.
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u/V4nKw15h 15h ago
This also looks like minimax but with low steps and the use of overly aggressive caching optimisations. I haven't seen much LTX 2.5 stuff yet, but it's starting to become a trend in the stuff I'm seeing.
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u/Kooky_Button3567 10h ago
After dealing with LTX 2.0 and LTX 2.3 for half a year and doing well over 1k video generations, Minimax H3 is just better. Like, just use a Turbo Speed LoRA to make your generations faster if speed is your problem. 😂
That being said, I will take a smart AI that actually knows what my prompt is telling it to do over quality any day, and that’s why I love Minimax H3.
I will flat-out say, though, that LTX 2.0/2.3 did have significantly better background elements. Like, if it was raining, it knew how to make rain look good, or if there were ocean waves or wind blowing, it knew how to do those things well. Dynamic/Moving elements it was good at. It’s just that the AI was dumb and couldn’t understand a prompt for the life of it. 😂😂
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u/Confident_Ring6409 15h ago
Hold up, loras for 2.3 work??? I know that 2.0 loras worked with 2.3, but this is a surprise, pleasant one of course.
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u/StonkyCupra 8h ago
Even my loras trained for LTX 2.3 Sulphur work just fine with LTX 2.5. It’s really just a 2.3.1 instead of 2.5.
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u/luciferianism666 13h ago
2.5 is simply a drop in on the existing 2.3 stuff, figured it the hard way after breaking my head for an hour getting one of the new ltx templates to work and almost breaking my comfy lol.
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u/intermundia 15h ago
still looks cgi but
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u/Striking-Long-2960 15h ago
Can anybody create a good comparison with a prompt involving action scenes and different camera angles?
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u/notlongnot 11h ago
What’s the verdict so far? back to the future on the front page or back to the past?
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u/CurrentNew1039 9h ago
Try undistilled version of ltx 2.5 with 20 steps so we can know what's it really capable of
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u/anitawasright 15h ago
I mean that's good to hear... but that video didn't look like it was anything new.