Pika H3 Flex ships as an open-weight video model

Pika H3 Flex is a post-trained MiniMax H3 video model with open weights for generating video with audio at 480p and 768p. The weights cover text-to-video, first and last frames, and reference-to-video.

The 4K upscaler and separation into five audio stems are hosted features. Flex is available through Pika API Club, with the Pika app release set for November 2.