Gantry · dataset evaluation · 13 September 2026

one action dimension is constant in 47 of 198 episodes

FormicTech/yam-bars-in-box-v6-merged-198, measured from the public release on 13 September 2026. frame level, every row read

We read every frame of FormicTech/yam-bars-in-box-v6-merged-198, 198 episodes and 179,650 rows. In 47 of them the dimension named right_elbow.pos holds one value for the whole episode. It is worth knowing whether that is intended, because for that share of episodes the policy is learning a constant on that channel.

The release, as it actually is

propertyvalue
episodes198
frames179,650
frame rate30 fps
robotbi_yam_follower
action dimensions14
cameras3
distinct task strings1
shortest episode361 frames
median episode884 frames
longest episode2,220 frames

How each episode ends

A trailing hold is the number of frames at the end during which the commanded action does not change by more than 1e-4 on any component. Seconds come from the frame rate the release declares.

trailing hold at leastepisodesshare
1 frames , 0.03 seconds2110.6%
5 frames , 0.17 seconds00.0%
10 frames , 0.33 seconds00.0%
30 frames , 1.0 seconds00.0%
60 frames , 2.0 seconds00.0%

How to check this without taking our word

The release is a meta directory plus one or more parquet files. Read data/chunk-000/file-000.parquet, group rows by the episode ranges in meta/episodes, and compute the same columns. No credentials.

What a full grading adds

This page is what a published release will tell you on its own. The full grading removes the part that scores worst and retrains on what is left, then reports whether the smaller corpus scores higher, with rollout counts and intervals. The one result measured on physical hardware is Stera-10M, two arms on a four arm SO-ARM101 bench, 21.9% against 36.9% task success across 1,270 rollouts.