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Ankit Goyal

@imankitgoyal3,006 subscribers

Foundation Models for Robotics, Senior Research Scientist @ NVIDIA

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What's the right architecture for a VLA? VLM + custom action heads (π₀)? VLM with special discrete action tokens (OpenVLA)? Custom design on top of the VLM (OpenVLA-OFT)? Or... VLM with ZERO modifications? Just predict action as text. The results will surprise you. VLA-0: Outperforms π₀, GR00T-N1, MolmoAct, SmolVLA. With ZERO changes to the VLM. 🧵⬇️

What's the right architecture for a VLA? VLM + custom action heads (π₀)? VLM with special discrete action tokens (OpenVLA)? Custom design on top of the VLM (OpenVLA-OFT)? Or... VLM with ZERO modifications? Just predict action as text. The results will surprise you. VLA-0: Outperforms π₀, GR00T-N1, MolmoAct, SmolVLA. With ZERO changes to the VLM. 🧵⬇️

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