Kandinsky LabKandinsky 4

Kandinsky 4.0 V2A

The video-to-audio generator fine-tunes Riffusion's spectrogram diffusion model. Its modified conditioning uses video frames, with CogVLM2 providing visual and text representations.

Generate a spectrogram before the waveform

A diffusion U-Net predicts the spectrogram. Griffin–Lim converts that representation to sound. This is a distinct audio generator, not the audio track from the input video.ai-forever/kandinsky-4-v2a — model card and files

Read the derivative and upstream terms together

The Riffusion card states use restrictions and conditions for redistribution. The Kandinsky card's Apache label should not be read as removing the upstream terms.Riffusion v1: upstream model card and license

Specifications & access

Kandinsky 4.0 V2A specifications
DetailValue and conditions
AccessDownloadable
Model identifiersai-forever/kandinsky-4-v2a
Base modelriffusion/riffusion-model-v1ai-forever/kandinsky-4-v2a — model card and files
Kandinsky card licenseApache 2.0ai-forever/kandinsky-4-v2a — model card and files
Upstream Riffusion licenseCreativeML OpenRAIL-MRiffusion v1: upstream model card and license

Related models

  • A distilled Kandinsky 4 model for twelve-second 480p video, with a CogVideoX VAE and T5 encoder.

    Launch date not confirmedDownloadable