LTX 2.3 — 20 second vertical POV video generated in 2m 26s on RTX 4090 | ComfyUI | 481 frames @ 24fps | LTX 2.3 Is AMAZING
New AI video model creates detailed 20-second scenes with dialogue and audio in just 3.5 minutes.
The LTX 2.3 AI video generation model has demonstrated a significant leap in speed and capability, producing a complex 20-second vertical POV video in just 3 minutes and 35 seconds. The test, run on an NVIDIA RTX 4090 using the ComfyUI workflow, generated a detailed cafe scene featuring a single character, natural dialogue broken into timed beats, window lighting, and ambient audio. This performance marks a dramatic 4-5x speed improvement compared to older generation methods that would have required 15-20 minutes for similar output.
The key to LTX 2.3's effectiveness lies in its structured prompting guide. The successful prompt avoided vague emotional labels, instead using precise physical cues and separately described audio elements within timed segments. This approach allows for more controlled and coherent narrative generation. The model's ability to quickly render such detailed scenes—complete with character performance and environmental storytelling—positions it as a powerful tool for rapid content prototyping, storyboarding, and creating short-form social media content, drastically reducing the iteration time for creators.
- Generates a 20-second, 481-frame vertical POV video in 3 minutes 35 seconds on an RTX 4090 via ComfyUI
- Uses a structured prompting guide with timed segments and physical acting cues instead of emotional labels
- Represents a 4-5x speed increase over older methods, enabling rapid narrative video prototyping
Why It Matters
Dramatically accelerates AI video production, making complex, narrative-driven short-form content viable for creators and marketers.