MARB · Robotic hand · Updated October 4, 2026
Robotic hand leaderboard
A separate benchmark for assembling authored robotic-hand components. Each hand and scoring method is reported separately; results are not combined into one ranking.
Halden and DexHand · development update
October 4, 2026 · unranked. Local Qwen completed the Halden test workflow but saved only the fixed anchor: 0/48 scored groups at a 1 mm tolerance. A separate Astra Medium run on a partial DexHand snapshot returned all 101 instances, with 16/100 non-anchor matches under its 5 mm screen. Different tasks and assistance conditions prevent a model ranking.
Read the update, assembly views and retained failure history →
Amazing Hand
Initial pilot complete · no ranked entries. The retained case uses 29 component designs in 226 positions. Three Astra attempts and three supervised Grok Bot attempts establish a baseline under the stated execution and scoring conditions. No complete reference-pose reconstruction was obtained; these observations do not establish a model ranking.
ORCA
In preparation · no ranked entries. Repeated import and rigid-placement checks passed for five flagged source components. Their known geometry defects remain documented exceptions, not successful validity checks. Source-version and parts-list conflicts remain unresolved.
How results will be compared
Each published comparison must identify the hand, kit and scoring versions, model and effort, runtime, assistance conditions, and attempted and graded run counts. Repeated trials must report failures and variation, not just the best export.
Hand results are not comparable with M3-CRETE scores. Initial preparation concerns digital assembly placement; it does not establish grasping performance, strength, safe motion or physical buildability. Berkeley Lite is deferred.
Halden Mk-IV design exploration
Read the Halden Mk-IV design review: how an assembly request developed into a manufacturing brief, with actual exhibit images, a dated parts estimate and the limits of the development record. This unbuilt concept is separate from HandBench results. Open the current Halden Mk-IV exhibit.
Interactive exhibit
Explore Halden Mk-IV: a 59-part hand concept with modeled servos and tendons, assembly animation and eight grip poses. This unscored visualization is separate from the Amazing Hand reconstruction results and does not establish physical buildability.
Next steps
Freeze the Halden task and adapter for repeated local trials, while retaining the Amazing Hand baseline for future comparisons. ORCA still needs a matching authored assembly or accepted component placements before its baseline can proceed. Nightly scheduling and cross-host qualification remain outstanding; Berkeley Lite is deferred.