Pika opens H3 Flex weights, generating 15-second clips in as little as 7 seconds
Pika H3 Flex is a video model post-trained on MiniMax H3 that makes video with matching audio, and Pika is releasing it as open weights on Hugging Face with inference code on GitHub. Pika says it is 1.8x faster than H3Max and up to 80% cheaper, and takes up to 12 reference inputs. Local weights run at 480p and 768p; the 4K upsampler and audio-stem separation stay Pika-hosted features.