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PaLM-E: An Embodied Multimodal Language Model

Danny Driess · Fei Xia · Mehdi S. M. Sajjadi · Corey Lynch · Aakanksha Chowdhery · Brian Ichter · Ayzaan Wahid · Jonathan Tompson · Quan Vuong · Tianhe (Kevin) Yu · Wenlong Huang · Yevgen Chebotar · Pierre Sermanet · Daniel Duckworth · Sergey Levine · Vincent Vanhoucke · Karol Hausman · Marc Toussaint · Klaus Greff · Andy Zeng · Igor Mordatch · Pete Florence

Exhibit Hall 1 #237


Large language models excel at a wide range of complex tasks. However, enabling general inference in the real world, e.g. for robotics problems, raises the challenge of grounding. We propose embodied language models to directly incorporate real-world continuous sensor modalities into language models and thereby establish the link between words and percepts. Input to our embodied language model are multimodal sentences that interleave visual, continuous state estimation, and textual input encodings. We train these encodings end-to-end, in conjunction with a pre-trained large language model, for multiple embodied tasks including sequential robotic manipulation planning, visual question answering, and captioning. Our evaluations show that PaLM-E, a single large embodied multimodal model, can address a variety of embodied reasoning tasks, from a variety of observation modalities, on multiple embodiments, and further, exhibits positive transfer: the model benefits from diverse joint training across internet-scale language, vision, and visual-language domains. Our largest model with 562B parameters, in addition to being trained on robotics tasks, is a visual-language generalist with state-of-the-art performance on OK-VQA, and retains generalist language capabilities with increasing scale.

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