Lightricks LTX-2.5 Fast
Lightricks' fast video model — synchronized audio, first-to-last-frame control, and clips up to 20 seconds, at resolutions up to 4K.
LTX-2.5 Fast is a cloud video-generation model built by Lightricks. It produces short video clips from a text prompt, a starting image, or by interpolating between a first and last frame. Clips run up to 20s at 4k with a synchronized audio track. It also supports a selectable frame rate and reference images. It runs through Runware and Replicate using your own API key, from about $0.03 per second of output.
- Released
- 1 month ago (Aug 2026)
- Pricing
- $0.03 per second
- Max resolution
- 4k
- Aspect ratios
- 16:9, 9:16
- Clip length
- Up to 20s
- Audio
- Synchronized track
- Frame rate
- 24, 25, 48, 50 fps
- Image-to-video
- Start & end frame + reference images
Examples
Generated with LTX-2.5 Fast via Runware. The same two prompts run against every video model in the catalog (one landscape, one portrait), so the only thing that changes between two models’ clips is the model.
Camera motion, scene coherence over time
Fluid motion, fine detail, temporal stability
Lightricks
Lightricks builds the LTX family of video models — fast, high-resolution generation with native synchronized audio, first-to-last-frame control, and the open-weight LTX-Video research line.
www.lightricks.com ↗