Blog category

Physical AI

Research, practical guidance and original analysis from Grasp.

Dual-arm robot surrounded by aligned RGB, depth, point-cloud, joint, force and task-outcome signals

Physical AIJuly 31, 20267 min

The Physical AI Data Flywheel: Failures Into Supervision

A decision-focused review of closed-loop failure recollection: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJuly 24, 20267 min

Robot Evaluation Needs More Than Success Rate

A decision-focused review of slice-based embodied evaluation: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJuly 17, 20267 min

Safety Evaluation for Physical AI Starts With Scenarios

A decision-focused review of scenario-based robot safety evaluation: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJuly 16, 20269 min

Physical AI Needs More Than Frames: Designing Multimodal Ground Truth

A framework for aligning vision, actions, robot state, language, contact and outcomes into useful Physical AI supervision.

Physical AIJuly 10, 20267 min

Cross-Robot Transfer Requires Action Semantics

A decision-focused review of action meaning across embodiments: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJuly 3, 20267 min

Teleoperation Quality Is Part of the Ground Truth

A decision-focused review of operator demonstration quality: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJune 26, 20267 min

Sim-to-Real: Annotate the Gap, Not Just the Simulation

A decision-focused review of paired simulated and real evidence: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJune 19, 20267 min

Reward Models Need Better Outcome Evidence

A decision-focused review of human and automated outcome judgments: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJune 12, 20267 min

Failure Recovery Is Its Own Dataset

A decision-focused review of intervention and recovery data: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJune 5, 20267 min

World Models for Robotics Need Observable Evaluation

A decision-focused review of predictive models for control: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMay 29, 20267 min

Force–Torque Signals Need Task Semantics

A decision-focused review of force and torque supervision: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMay 22, 20267 min

Tactile Data: The Missing Modality in Visual Success

A decision-focused review of tactile sensing aligned with vision: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMay 15, 20267 min

Contact-Rich Manipulation Needs Failure Boundaries

A decision-focused review of contact and recovery evidence: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMay 8, 20267 min

Mobile ALOHA: Manipulation Meets Base Motion

A decision-focused review of whole-body mobile manipulation: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMay 1, 20267 min

ALOHA: Low-Cost Hardware, High-Value Demonstrations

A decision-focused review of bimanual teleoperation data: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIApril 24, 20267 min

RoboMimic: Offline Learning Exposes Demonstration Quality

A decision-focused review of mixed-quality offline demonstrations: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIApril 17, 20267 min

BridgeData V2: Diversity Needs Measurable Coverage

A decision-focused review of varied manipulation trajectories: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIApril 10, 20267 min

DROID: Distributed Collection Is a Quality-Control Problem

A decision-focused review of distributed robot demonstrations: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIApril 3, 20267 min

Open X-Embodiment: Transfer Starts With Representation

A decision-focused review of heterogeneous cross-robot training: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMarch 27, 20267 min

GR00T N1: Humanoid Data Needs Whole-Body Context

A decision-focused review of generalist humanoid policy data: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMarch 20, 20267 min

Gemini Robotics: Embodied Reasoning Must Meet Execution

A decision-focused review of multimodal reasoning and robot action: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMarch 13, 20267 min

Pi-Zero and the Data Behind General Robot Control

A decision-focused review of flow-matching robot policies: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIMarch 6, 20267 min

ACT and Chunked Control: Preserve the Transitions

A decision-focused review of action-chunked bimanual control: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIFebruary 27, 20267 min

Diffusion Policy: Action Chunks Change Annotation Needs

A decision-focused review of diffusion-based action sequences: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIFebruary 20, 20267 min

Octo: A Generalist Policy Is a Starting Point

A decision-focused review of cross-robot transformer policies: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIFebruary 13, 20267 min

OpenVLA: Open Models Still Need Target-Domain Evidence

A decision-focused review of open vision-language-action models: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIFebruary 6, 20267 min

PaLM-E: Embodied Context Is More Than a Prompt

A decision-focused review of sensor-conditioned language modeling: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJanuary 30, 20267 min

RT-2: Web Knowledge Meets Robot Action

A decision-focused review of co-fine-tuned semantic and action data: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJanuary 23, 20267 min

RT-1: What the Dataset Design Contributed

A decision-focused review of large real-robot task collections: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJanuary 16, 20267 min

Vision–Language–Action Models Need Action-Aware Data

A decision-focused review of vision-language-action supervision: what the evidence can support, where teams can over-read it, and how to validate the next move.

Physical AIJanuary 9, 20267 min

Embodiment Changes What a Label Means

A decision-focused review of embodiment-specific state and action data: what the evidence can support, where teams can over-read it, and how to validate the next move.