VIdeo AI LTX free and API vs Wan 2.1 free

 

4. Why and when to use Wan 2.1 vs LTX? And what's cheapest 24GB card?

LTX 2.3: 22B params, Max 2560×1440 at 50 FPS, audio-native ✅, 10-14x faster than Wan. Best for product shots, portrait 9:16, social media, rapid iteration. -- need 16GB GTX card

Wan 2.1: 14B params, Max 1280×720 at 24 FPS, motion coherence Very Good, identity preservation High. Best for nature, cinematic motion, realistic water/trees/faces.

Rule of thumb:

  • Need speed + vertical + cheap 1-min video? LTX
  • Need best nature quality where leaves/water look real? Wan 2.1 - it has less artifacts on complex motion

Cheapest 24GB card to run both:

  • RTX 4090 is the entry 24GB consumer card - 24GB GDDR6X - Rent from $0.69/hr on RunPod, Community Cloud from $0.34/hr
  • RTX A5000 also 24GB - $0.27/hr - slower but cheaper, good for Wan
  • RTX 3090 also 24GB - $0.124/hr on SaladCloud - cheapest 24GB if you find it

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