Ltx 2.5 Text to Video Fast

LTX 2.5 Text to Video Fast is the speed-oriented prompt-to-clip route in the 2.5 family. It starts without a reference frame, translating a written shot plan directly into moving imagery while exposing 720p, 1080p, 1440p, and 2160p delivery choices. The Fast path is useful when a creative team needs to explore many concepts, camera ideas, or pacing alternatives before spending time on a smaller set of final candidates.

This endpoint supports six-to-twenty-second selections, optional generated audio, explicit camera-motion presets, several frame rates, and a broad aspect-ratio range. Those controls make it practical for rapid storyboard passes, social campaign variants, and early editorial assemblies where throughput matters. Lock the subject and action in the prompt, compare one resolution or camera setting at a time, and promote only the strongest takes into finishing.

Highlights

• Purpose-built Text-to-video generation. The route accepts a shot description with subject, action, camera, and atmosphere and produces a coherent video interpretation of the written direction; its interface is scoped to that transformation, keeping source assets and creative intent explicit.
• Creative direction. Prompts can describe subject behavior, composition, camera intent, lighting, material, atmosphere, and temporal progression so the result is driven by a shot plan rather than isolated keywords.
• Route-specific control. The request exposes aspect_ratio choices (21:9, 16:9, 3:2, 4:3, 5:4, 1:1, 4:5, 3:4, 2:3, 9:16); resolution choices (720p, 1080p, 1440p, 2160p); duration choices (6, 8, 10, 12, 14, 16, 18, 20); generate_audio (Whether to generate audio for the generated video), allowing the same concept to be tested systematically while preserving a repeatable production setup.
• Pipeline-ready output. The generated media asset is returned through the documented asynchronous output contract, which suits review queues, batch iteration, and downstream automation. Editors can review pacing, continuity, lens language, choreography, transitions, temporal artifacts, soundtrack alignment, color response, delivery framing, and cut compatibility before approval.

Pricing

When to Use

Prompt Guide

Start with the desired result, then describe the source relationship, subject action, composition or camera behavior, lighting, style, and timing. For text-to-video generation, state what must remain stable as clearly as what should change. Use only fields exposed by the schema; the example below is structurally valid for this route.

{
  "prompt": "Through-the-veil shot of a bride's face during an Indian wedding ceremony, camera positioned behind the sheer red dupatta fabric, the embroidered pattern creating a textured overlay on her face, her eyes lined with kohl looking down at henna-covered hands, marigold garlands in soft background bokeh, 85mm f/1.2 focused through the fabric layer, warm tungsten and candlelight, Mira Nair Monsoon Wedding intimacy",
  "aspect_ratio": "21:9",
  "resolution": "1080p",
  "duration": 6,
  "generate_audio": true
}

Technical Specs

Related Models

• lightricks/ltx-2.5/image-to-video/pro
• lightricks/ltx-2.5/image-to-video/fast
• lightricks/ltx-2.5/text-to-video/pro