FLUX.3 Text to Video Draft by Black Forest Labs is the fast, low-cost preview mode for text to video: generate a quick draft of your prompt, with native synchronized audio, to explore creative directions before committing. When a draft lands, re-render it at full quality on FLUX.3 Text to Video and it keeps the same subjects, composition and motion. Supports durations from 5 to 20 seconds in aspect ratios from 21:9 to 9:16. Ideal for rapid iteration, prompt testing, storyboarding and previz before a final render.