Dream Labs released Dream-1, a World Action Model it says can control bimanual robots it has never seen
AspireAI community · Dream Labs
Dream Labs says its new Dream-1 World Action Model can control bimanual robots with parallel grippers it has never seen, without embodiment-specific training data or demonstrations, and is available through a public API at $3 per hour. The model predicts video and actions together, so a new robot is just pixels to it; its own blog shows real rollouts on robots including the 18-year-old PR2. The independent evaluator Robocurve lists Dream-1 at 59.3% on RoboDojo-RC Tier 1, ahead of Gemini 4 Argon at 48.2% and GPT-6.1 Sol at 41.7%, though Dream Labs is explicit that one-shot adaptation still beats zero-shot and performance depends on each robot's inverse-kinematics solver.
Read the story and explore more from the AspireAI community.
Two sparse-autoencoder analyses have resisted scaling: matching semantically similar features across layers, and compressing large feature circuits into interpretable supernodes. This paper argues both are the same underlying problem, estimating semantic distances between SAE features that sit on different activation manifolds. Its representation treats each feature not as a single decoder vector but as an activation-weighted distribution over the hidden states expressing it, projects those distributions into a shared reference space, and compares them with Wasserstein distance. The representation is proved invariant to activation rescaling and stable under perturbation, and recovers true matches under finite-sample margin conditions. Empirically it outperformed decoder-vector and LLM-based baselines and captured subtle functional distinctions between related features, and it compressed large feature circuits into interpretable supernodes automatically. The limitation is that this is interpretability tooling: the paper demonstrates better feature matching and circuit compression, not that downstream interpretability claims become more accurate.