Text-to-Image Generative Modeling Without Language Pretraining
Keshigeyan Chandrasegaran, Yue Zhao, Armin W. Thomas, Ehsan Adeli, Jiajun Wu, Juan Carlos Niebles, Li Fei-Fei, Michael Poli
Read on arXiv →Key claim
Strong T2I systems can be trained without language pretraining.
In plain English
Imagine you're building a system that generates images based on text descriptions. Traditionally, these systems rely heavily on large-scale language models trained on vast amounts of internet data, which can be resource-intensive and may not always yield the best results. This approach can lead to inefficiencies, especially when the language model doesn't directly contribute to the image generation process, which is what's called over-reliance on language pretraining. It can also create bottlenecks in training time and computational resources, making it harder for smaller teams to innovate in this space. To address these challenges, Halcyon introduces a family of multimodal models that are trained from scratch on a large dataset of image-text pairs, bypassing the need for extensive language pretraining. The intuition here is that by focusing directly on the relationship between images and their textual descriptions, these models can learn to generate images more efficiently. Halcyon demonstrates that it can outperform existing models while using significantly less computational power, showing that strong text-to-image systems can be built without the traditional reliance on language models. This shift means that builders can explore more efficient pathways to create T2I systems, potentially democratizing access to advanced image generation technologies.
Halcyon introduces a new approach to text-to-image generation without relying on language pretraining.
The experiments are well-controlled and demonstrate significant improvements over existing models with less compute.
Deep reliability assessment
The methodology supports that strong T2I generation can be achieved without language pretraining, but the generality of findings across different datasets and model sizes is not fully established.
Reproducibility
yes, code and models are available at cs.stanford.edu/~keshik/halcyon
Key figure
Figure 1 illustrates the generation quality on GPIC versus total pretraining FLOPs for various T2I systems, highlighting Halcyon's lower compute requirements.
