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arXiv

Vela replaces fixed-rate action chunks with continuous spline trajectories, reaching 45.3% average success on LIBERO-X, 49.7% overall on EBench, and 67.5% mean subtask success on a real dual-arm egg-cake task

Vela is a vision-language-action foundation model pretrained in trajectory space that represents future motion with a fixed number of cubic B-spline control points plus a motion-dependent temporal span; pretrained on roughly 20,000 hours of public and roughly 20,000 hours of private robot data, it reaches 45.3% average success on LIBERO-X, 49.7% overall success and a 66 task-progress score on EBench, and 67.5% mean subtask success on a real wheeled dual-arm egg-cake cooking task.