Physical AI Radar · Weekly roundup · 2026-W38

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15 picks published 2026-09-14 → 2026-09-20, grouped by lane. Titles link to the source; dates link to that day’s radar.

• Evidence tags: O = first-party official · R = paper/preprint · M = media/secondary
• [O] 3 · [R] 7 · [M] 5

Foundation models (VLA / WAM) (3)

• [R] GeoAAC: Geometry-Based Adaptive Action Chunking from Denoising Trajectories in VLA Policies — arXiv 2609.20776v1 ｜ 2026-09-19
• [R] Agile-WAM: An Agile Tactile World Action Model for Contact-Rich Robot Control — arXiv 2609.20761v1 ｜ 11.9 ms ｜ 2026-09-19
• [O] Fine-Tuning π0 (Pi-Zero) for robotic manipulation on Amazon SageMaker HyperPod EKS — AWS Physical AI Blog ｜ 2026-09-20

Data engine (collection / curation / scaling) (1)

• [M] Robots Are Learning to Feel — IEEE Spectrum Robotics ｜ 100 hours · 12 tasks · 3,000 hours ｜ 2026-09-19

Training & self-improvement (RL / post-training) (2)

• [R] Towards High-DoF Dexterous Manipulation through VLA Post-Training — arXiv 2609.19666v1 ｜ 2026-09-19
• [O] Cute Critters Come to the Cloud: ‘Aniimo’ Launches on GeForce NOW — NVIDIA Blog ｜ 2026-09-20

Simulation & evaluation (sim2real / closed-loop) (3)

• [R] FIVE-VLA: Fast and EffectIVE Autonomous Driving with Recurrent Action Memory — arXiv 2609.18623v1 ｜ 641M parameters · 10% · 10.2% ｜ 2026-09-19
• [M] Video Friday: Two Birotors Make a Quadrotor — IEEE Spectrum Robotics ｜ 33% · 2x ｜ 2026-09-20
• [M] Video Friday: Digit Redecorates — IEEE Spectrum Robotics ｜ 2026-09-20

Edge & real-time (on-device inference / control rate) (3)

• [R] rMuscle: Robotic Muscle Memory for Efficient Vision-Language-Action Model Inference — arXiv 2609.19104v1 ｜ 2026-09-19
• [R] PASSAGE: Scaling Scene-Aligned Motion Learning for Perceptive Humanoid Traversal in Cluttered Environments — arXiv 2609.18732v1 ｜ 50 Hz · 48.1% · 68.9% ｜ 2026-09-19
• [O] NVIDIA Vera Rubin NVL72 Delivers Leading Performance in MLPerf Inference v6.1 Debut — NVIDIA Blog ｜ 2026-09-20

Systems & orchestration (long-horizon / multi-policy) (1)

• [R] StageGuard: Learning Stage Transitions for Long-Horizon Robot Tasks via Agentic Distillation — arXiv 2609.20791v1 ｜ 2026-09-19

Embodiment & supply chain (hardware / cost) (2)

• [M] Digit 5 May Be the First Humanoid Robot Worker That’s Truly Safe — IEEE Spectrum Robotics ｜ 20 hours ｜ 2026-09-20
• [M] Video Friday: Meet Microduck — IEEE Spectrum Robotics ｜ 2026-09-20

This repository is technical observation. It is not investment advice, a product commitment, or a safety certification conclusion. Paper claims are author-reported.

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