Flux 3 Video Generator

Flux 3 is a multimodal AI model that generates short videos with synchronized audio — dialogue, sound effects, ambience, and music — all in one pass. You can start from a text description, an image, or an existing video clip, and the model produces a scene that matches your prompt. It handles aspect ratios up to 21:9, durations up to 15 seconds, and resolutions up to 2K. The interface is a simple playground: write a prompt, pick your settings, and hit generate.

What makes Flux 3 stand out is that it treats audio as a first-class output, not an afterthought. Instead of generating a silent video and adding sound later, the model produces both together, which keeps lip movements, footsteps, and environmental noise consistent with the visuals. It also supports reference inputs — you can upload up to 9 images or 3 video clips to guide the style or continue a scene. The model is trained jointly across image, video, audio, and action, so it understands how objects move, how light changes, and how sound behaves in a scene.

Flux 3 is best for creative professionals who need quick visual and audio prototypes. Filmmakers can use it for previz and storyboards. Marketing teams can generate hero stills and short launch videos from a single prompt. Game developers can sketch concept art and action sequences with built-in sound. The pricing starts at $17 per month for 1,700 credits, with a Max plan at $83 per month for 10,800 credits and commercial licensing.