BIPEDAL ACTION MODEL FOR HUMANOID ROBOT
The present disclosure provides a system for generating motor control commands for a humanoid robot, comprising an alpha model with over 1 billion parameters that processes visual observations and language instructions at a first frequency to generate contextual embeddings, and a beta model operating at a higher second frequency. The beta model includes an embodiment-specific state encoder projecting robot state information into a shared embedding space, a diffusion transformer module generating denoised action sequences through iterative flow-matching that cross-attends to the alpha model's contextual embeddings, and an embodiment-specific action decoder converting denoised sequences into motor control commands. The beta model generates action chunks comprising future action sequences over a predetermined time horizon in a single inference step, with the complete system having less than 5 billion parameters.
1 . A system for generating commands for a humanoid robot, comprising:
a bipedal action model that includes:
an alpha model configured to generate contextual embeddings at a first frequency based on visual observations and language instructions, and wherein the alpha model comprises a vision-language model with more than 1 billion parameters;
a beta model: (i) configured to generate a set of continuous values based in part upon the contextual embeddings from the alpha model, (ii) operating at a second operational frequency that is higher than the first operational frequency, and (iii) includes fewer parameters than the alpha model.
2 - 3 . (canceled)
4 . The system of claim 1 , wherein the alpha model is deployed on a remote server and the beta model is deployed on local processors integrated within the robot.
5 - 8 . (canceled)
9 . The system of claim 1 , wherein the alpha model operates at between 1 μHz to 10 hz and includes between 5 billion and 2 trillion parameters, and the beta model operates at between 1 hz to 10 kHz and includes between 10,000 and 5 billion parameters.
10 - 18 . (canceled)
19 . The system of claim 1 , wherein the set of continuous values comprise at least 30 values, and wherein each value is associated with at least one degree of freedom.
20 . The system of claim 1 , further comprising an action chunk that includes: (i) the set of continuous values, and (ii) other sets of continuous values, and wherein the set and other sets of continuous values are sequenced over a predetermined time horizon, and wherein the action chunk is generated in a single inference step.
21 . The system of claim 1 , wherein the alpha model is a vision-language model that has been pre-trained on data from the internet.
22 . The system of claim 21 , wherein the bipedal action model includes a single beta model with a single set of neural network weights that are configured to allow the humanoid robot to perform a plurality of dexterous whole body behaviors without using a second set of neural network weights.
23 . The system of claim 22 , wherein the bipedal action model alpha and beta models are post-trained, end-to-end using a loss function with gradients propagated back up to the alpha model.
24 . The system of claim 23 , wherein the post-trained process uses high-quality demonstrations that have been automatically labeled in part by another separate and distinct transformer-based model.
25 . The system of claim 1 , wherein the bipedal action model further integrates a Retrieval-Augmented Generation module to obtain real-time knowledge retrieval from external sources.