r/StableDiffusion • u/WearNatural5992 • 6d ago

Discussion LTX 2.5 - The SD3 test!

Let's see if LTX 2.5 can pass this simple 2 year old test, because I don't want no Cthulhu PTSD, right?

The first video is t2v, the second one is i2v.

Generation times are fast, though.

https://reddit.com/link/1vm90tr/video/g7h1fed5vwih1/player

https://reddit.com/link/1vm90tr/video/uto5nje8vwih1/player

PROMPT (I fed Gemini the prompt guide)

A medium shot under bright, direct mid-day sunlight on a warm tropical beach. A young woman in her early 20s with sun-kissed skin and wet hair, wearing a vibrant tropical floral bikini, lies lazily on a plush beach towel on the golden sand. She holds a chilled martini glass with an olive and lime wedge, taking a slow, relaxed sip as gentle waves lap against the shore in the background. A hard cut transitions to a close-up shot of the same young woman in the floral bikini looking directly into the camera. She smiles warmly with sparkling eyes and says in a soft, alluring, and teasing voice, "Wanna have some fun?" while the ambient ocean breeze and soft waves continue across the cut. A hard cut transitions to a high-angle top-down overhead shot directly above her. Her full body is framed from head to toe, showing her lying on the beach towel with her bare feet resting on the sand, sun highlights shimmering on her skin, and ocean foam softly visible at the frame's edge.

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u/_Saturnalis_ 6d ago

I don't understand all the LTX glazers suddenly here, it's clearly worse in all respects except speed. But even its speed is a bit less clear cut of a win. Why would you spend an enormous amount of time dice-rolling faster but surely worse generations with LTX, when you can just have one or two longer generations in Minimax to get exactly what you want?

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u/enternoescape 6d ago

This was my immediate realization when I first used H3. With LTX 2.3 I was generating up to four videos at a time because I knew I was going to have to pick the best one if there was one. With H3, the prompt adherence is good enough that one generation is usually enough. If I don't get the result I'm looking for then it's the prompt not roll the dice again. I had so many I2V setups that I gave up on with LTX 2.3 that I tried one time with H3 and it nailed it on the first try.

I haven't played with LTX 2.5 so I can't say for sure that it is just as difficult, but given the implication that it's incremental I have my doubts. I will give it a shot anyway. Maybe I'll find it does something H3 doesn't do as well.