Scaling Autoregressive Multi-Modal Models: Pretraining and Instruction Tuning

July 14, 2023


We present CM3Leon (pronounced “Chameleon”), a retrieval-augmented, tokenbased, decoder-only multi-modal language model capable of generating and infilling both text and images. CM3Leon uses the CM3 multi-modal architecture but additionally shows the extreme benefits of scaling up and tuning on more diverse instruction-style data. It is the first multi-modal model trained with a recipe adapted from text-only language models, including a large-scale retrieval-augmented pretraining stage and a second multi-task supervised fine-tuning (SFT) stage. It is also a general purpose model that can do both text-to-image and image-to text generation, allowing us to introduce self-contained contrastive decoding methods that produce high-quality outputs. Extensive experiments demonstrate that this recipe is highly effective for multi-modal models. CM3Leon achieves state-of-theart performance in text-to-image generation with 5x less training compute than comparable methods (zero-shot MS-COCO FID of 4.88). After SFT, CM3Leon can also demonstrate unprecedented levels of controllability in tasks ranging from language-guided image editing to image-controlled generation and segmentation.

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Written by

Lili Yu

Bowen Shi

Ram Pasunuru

Benjamin Miller

Olga Golovneva

Tianlu Wang

Arun Babu

Binh Tang

Brian Karrer

Shelly Sheynin

Candace Ross

Adam Polyak

Russ Howes

Vasu Sharma

Jacob Xu

Uriel Singer

Daniel Li (FAIR)

Gargi Ghosh

Yaniv Taigman

Maryam Fazel-Zarandi

Asli Celikyilmaz

Luke Zettlemoyer

Armen Aghajanyan


Meta Research website

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