Phenaki is an AI model to generate videos that can be multiple minutes long straight from text. You can also generate video from a still image and a prompt. The proposed video encoder-decoder outperforms all per-frame baselines currently used in the literature in terms of spatio-temporal quality and number of tokens per video. To generate video tokens from text, they are using bidirectional masked transformer conditioned on pre-computed text tokens. The generated video tokens are subsequently de-tokenized to create the actual video.

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