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A mixed-modality input glyph branches to the reasoning and generation towers; the generation tower lists video, audio and action outputs. This is a simplified dual-tower schematic, not proof of AWS deployment performance.
  • Frontier Radar

Frontier Radar | NVIDIA Cosmos 3 on AWS: reasoning, video and actions in one forward pass, and the validation conditions attached to instance sizing

AWS on Cosmos 3: full Nano/Super checkpoints tested in BF16; H100 8-GPU SFT tested by NVIDIA. The post provides no benchmark numbers.

  • October 1, 2026
Four-step feedback loop: diagnose a real-robot failure, reconstruct it in simulation, refine the policy, redeploy and return to diagnosis.
  • Frontier Radar

Frontier Radar | F4R: rebuilding real-robot failures as simulation training grounds, in a loop of diagnosis, reconstruction, refinement and redeployment

F4R diagnoses real failures with a VLM agent, rebuilds them in sim and trains around them; authors report 90.0% OOD success, 18.75 pts over Targeted BC.

  • October 1, 2026
Frozen VLA feeds a simplified temporal U-Net with a skip connection and a SIREN continuous decoder; an axis-free sine glyph represents SIREN activation, not a measured action trajectory, and block counts do not declare the actual model depth.
  • Frontier Radar

Frontier Radar | ActionUNet: a temporal U-Net and a continuous decoder on VLA action features, for multi-scale yet smooth actions

ActionUNet adds a temporal U-Net and SIREN decoder to a frozen VLA; authors report π0.5 gains of 9.8/6.1/11.4 points in robustness tests, 6.46% slower calls.

  • October 1, 2026
A shared FFN 4-bit setting branches to IQ4_NL, NF4 and INT4 routes on one Orin NX: IQ4_NL uses llama.cpp native kernels, NF4 and INT4 use PyTorch, with INT4 dequantization labelled. Route lengths and box sizes do not encode energy.
  • Frontier Radar

Frontier Radar | EdgeVLN: same 4 bits, 36.8× difference in step energy depending on the execution path

Preprint: 4-bit formats on Orin NX differ 36.8× in step energy; IQ4_NL has the lowest energy and resident memory, while NF4 and INT4 also run on-board.

  • October 1, 2026
The raw trace on the left and the answer’s factual claims on the right flank a neutral inspection lens; a separate lower panel labels the model explanation not_assessed, outside automatic factual checking.
  • Engineering

Checking a model’s explanation against the original robot recording: what Robot Reel’s review-claims can establish

Match a raw answer to a SmolVLA trace. Explanation: not_assessed; unassessed facts give exit 1. Keep format failures unchanged.

  • October 1, 2026
Baseline complete-plan matches are 15/24 and the candidate has 19/24; a blocked gate indicates that case-level checks still reject the upgrade.
  • Engineering

Reviewing a model upgrade: complete-plan matches rose from 15/24 to 19/24, so why does the EvalArc gate still reject it?

Recompute a model-upgrade verdict from pinned, verified records: the total rose, yet 10 blocking checks trace to format or schema failures in two cases.

  • October 1, 2026
Schematic ellipses show simulated latents aligned toward the real distribution with optimal transport; mapped simulated latents feed the frozen VLA and simulation-trained scaled residual RL, whose actions are added. A separate note states that real deployment bypasses the mapper; the ellipses are not measured distributions.
  • Frontier Radar

Frontier Radar | VLaRL: a frozen VLA, residual RL trained only in simulation, and VLM latents to bridge the visual sim-to-real gap

Frozen VLA plus a sim-only residual on VLM latents aligned by an optimal-transport mapper; authors report real-robot gains in all 8 task–backbone pairs.

  • September 29, 2026
An illustrative waypoint path enters the action expert, with Normalized Goal Modulation (NGM) inside the expert and action output on the right; NGM is not a separate model layer, and no new latency measurement is shown.
  • Frontier Radar

Frontier Radar | Fast Plans, Faithful Actions: when a hierarchical VLA plans too slowly and its executor ignores the plan

π0.5-derived waypoint VLA: plans took 57 serial passes, endpoint erasure didn't hurt success. Authors cut robot planning 1094→125 ms; NGM makes plans count.

  • September 29, 2026
Two policies flank SAVI inspection, illustrating policy comparison through SAVI without trial counts, a depicted stopping time or a reward curve.
  • Frontier Radar

Frontier Radar | Beyond Binary Success: sequential tests that separate robot policies with fewer real-world rollouts

Sequential robot policy comparison via safe anytime-valid inference, for non-binary metrics too; authors report up to 70% less evaluation vs batch tests.

  • September 28, 2026
The article’s eight tracks form four groups: models/training, data/evaluation, deployment/systems and safety/embodiment. Learning-network, data-table review, service-orchestration and neutral shield/robot glyphs name the themes; circles are not statistical counts or certifications.
  • Frontier Radar

Embodied AI frontier highlights, September 2026: 14 key items across eight tracks

14 items from the Physical AI Radar's September archive, numbers checked: VLA evaluation starts testing recovery; latency becomes a formally reported metric.

  • September 28, 2026
Recovery, sequential testing, post-quantization closed-loop validation and simulator fidelity are four vertically listed perspectives. Return, H0/H1 testing, quantization and scene glyphs name the topics, without gauges, measured scores or a required order.
  • Frontier Radar

Frontier Radar deep dive | Simulation and evaluation: what VLA evaluation is missing beyond initial-state success rate

7 primary sources: recovery benchmarks, sequential testing, post-quantization closed-loop checks, sim fidelity. 98.83% initial success, only 48% recovery.

  • September 28, 2026
SFT, RL and deployment experience are connected vertically with demonstration-training, reward-feedback and deployment-record glyphs; a side warning names per-task regressions without promising continuous gains.
  • Frontier Radar

Frontier Radar deep dive | Training and self-improvement: three stages of VLA post-training and task collapse in online RL

Half-day SFT, RL post-training, learning from deployment: 7 radar sources outline VLA post-training, and the risk that online RL silently breaks single tasks.

  • September 28, 2026
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