captioners are image-text foundation models.

Yu, J., Xu, Y., Koh, J. Y., Luong, T., Baid, G., Wang, Z., Vasudevan, V., Ku, A., Yang, Y., Ayan, B. K., anda
Wei Han, B. H., Parekh, Z., Li, X., Zhang, H., Baldridge, J., and Wu, Y. (2022b). Scaling autoregressive
models for content-rich text-to-image generation.

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A Image decoder
Improving Image Generation with Better Captions