Veo 3.1 fast

Veo 3.1 Fast (preview) is the preview release of the speed-optimized Veo 3.1 Fast variant, delivering rapid video generation with native audio synthesis. It supports text-to-video and image-to-video generation with multimodal controls. This preview tier generates eight-second clips at 720p and 1080p with natively synthesized audio, including dialogue, sound effects, and ambient content. It supports reference images for character consistency and style control. As a preview release, this iteration gives developers early access to the performance-optimized tier of Veo 3.1 ahead of general availability, enabling testing and integration of high-speed video generation.