Gantry · dataset evaluation · 13 September 2026

one action dimension is constant in 9657 of 10,000 episodes

yaak-ai/L2D-v3, measured from the public release on 13 September 2026. frame level, every row read

We read every frame of yaak-ai/L2D-v3, 10,000 episodes and 2,298,363 rows. In 9657 of them the dimension named discrete[0] 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
episodes10,000
frames2,298,363
frame rate10 fps
robotKIA Niro EV 2023
action dimensions5
cameras7
distinct task strings1
shortest episode51 frames
median episode300 frames
longest episode600 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 , 0.1 seconds2,34023.4%
5 frames , 0.5 seconds2152.2%
10 frames , 1.0 seconds510.5%
30 frames , 3.0 seconds80.1%
60 frames , 6.0 seconds60.1%

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.