Pika
Video
Turn ideas into videos with AI — generate, edit, and style in seconds.
Video GeneratorCreative
LTX
Open-source AI video generation — 4K, synchronized audio, and creative control.
LTX by Lightricks is a state-of-the-art open-source video generation model that produces synchronized audio+video, 4K resolution at up to 50 FPS, and supports image-to-video, video extension, multi-keyframe control, and LoRA fine-tuning. Available via web app at ltx.studio, with open-source weights on Hugging Face and a vibrant ComfyUI community.
Updated
2026-07-20
Platforms
Web / API
Freemium
Web app credits needed for cloud generation
* Pricing is for reference only; see the official site for current pricing.
ltx.video
Key Features
Audio + Video
Generate visuals and sound together in one coherent process — motion, dialogue, ambience, and music flow simultaneously without post-sync.
4K Quality
Professional-grade precision with native 4K output and up to 50 fps — sharp textures, clean motion, and production-ready quality.
Creative Control
Start from images, extend existing clips forward or backward, and condition on multiple keyframes for precise scene control.
Open Source
Model weights on Hugging Face, LoRA fine-tuning support, and deep ComfyUI integration — customize and extend freely.
Best For
Video creators
Generate synchronized audio-video footage, extend clips, and control scenes with keyframes.
AI developers
Experiment with open-source video generation using LoRA fine-tuning and ComfyUI.
Pros
- Open-source — full model weights available
- Synchronized audio+video eliminates post-production sync
- Native 4K at 50 FPS — production-ready quality
- Active developer community with ComfyUI workflows
Considerations
- Requires powerful GPU for local inference
- Web app credits needed for cloud generation
- Still evolving — newer LTX-2 model announced
Related tools
Explore a few similar tools next
