Lightricks LTX-2 Fast Text to Video

Frequently Asked Questions

What is Lightricks LTX-2 Fast Text to Video?

LTX-2 Fast is a high-speed variant of the LTX-2 AI creative engine from Lightricks, built for creators and production teams that need rapid, synchronized text-to-video generation. It delivers cinematic motion, matching sound, and consistent visual style in seconds.

How are credits calculated?

Duration-based pricing: 20 credits per second. Minimum charge is 120 credits (6 seconds). Output resolution is fixed at 1080p.

What are the key features?

Ultra-fast inference in seconds, audio-video synchronization with perfect timing, realistic cinematic motion (camera pans, dolly shots, zooms, character movement), style-preserving generation, and lightweight & efficient design for production pipelines.

What are the best use cases?

Marketing & ad creatives, content production (prototype story snippets, intros, transitions), film previz & concept design (visualize scripts or moodboards), and education & training (dynamic explainer clips from lesson outlines).

How can I write effective prompts?

Describe scene, action, camera movement, and mood in detail. Example: 'Cinematic aerial shot of a futuristic city at sunrise, warm golden light reflecting off glass towers, gentle camera tilt, ambient soundtrack in sync.'

What video formats are returned?

MP4 URLs with synchronized audio (if enabled). Videos are optimized for production workflows with 1080p resolution.

How does audio synchronization work?

When 'Generate Audio' is enabled, the model produces audio that is perfectly synchronized with the video motion, rhythm, and pacing, ensuring seamless A/V alignment across every frame.

What duration options are available?

You can choose 6, 8, or 10 seconds. Minimum billing is 6 seconds. Longer durations provide more time for complex scenes and camera movements.

How does LTX-2 Fast differ from standard text-to-video models?

LTX-2 Fast is optimized for speed and production workflows, generating videos in seconds rather than minutes. It also includes built-in audio synchronization and maintains consistent visual style throughout the clip.

Can I control camera movements?

Yes, you can describe camera movements in your prompt, such as pans, dolly shots, zooms, or stationary shots. The model interprets these descriptions to create cinematic motion.