Stack line — measurement runs

Each entry is one full eval of one checkpoint — stitched per-task videos with episode jump buttons, the probe battery, and the failure diagnosis. Runs accumulate; nothing is overwritten. Grouped by version line — the line with the newest run is open.  Prompt analysis → follows one prompt across every run, as a timeline or on the checkpoint lineage.

stack_v4 11 runs · 2026-08-25 → 2026-09-28

2026-09-28-stack_v4_c1f-040000 latestgrounding

checkpoint: outputs/train/stack_v4_c1f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 9/10 · stack red on blue 5/10

2026-09-28-stack_v4_day3f-040000re-probe

checkpoint: outputs/train/stack_v4_day3f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 10/10 · stack red on blue 7/10

2026-09-27-stack_v4_y1f-040000grounding

checkpoint: outputs/train/stack_v4_y1f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 10/10 · stack red on blue 5/10

2026-09-26-stack_v4_day3f-040000re-probe

checkpoint: outputs/train/stack_v4_day3f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 10/10 · stack red on blue 6/10

2026-09-17-stack_v4_day3f-040000

checkpoint: outputs/train/stack_v4_day3f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 9/10 · stack red on blue 6/10

2026-09-16-stack_v4_day3prep2f-040000prep

checkpoint: outputs/train/stack_v4_day3prep2f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 8/10 · stack red on blue 0/10

2026-09-10-stack_v4_day3prepf-040000prep

checkpoint: outputs/train/stack_v4_day3prepf/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 10/10 · stack red on blue 0/10

2026-08-27-stack_v4_day2f-040000

checkpoint: outputs/train/stack_v4_day2f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 10/10 · stack red on blue 0/10

2026-08-27-stack_v4_day2prepf-040000prep

checkpoint: outputs/train/stack_v4_day2prepf/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 8/10 · pick up red 0/10 · stack red on blue 0/10

2026-08-26-stack_v4_day1f-040000

checkpoint: outputs/train/stack_v4_day1f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 8/10 · pick up red 0/10 · stack red on blue 0/10

2026-08-25-stack_v4f-040000

checkpoint: outputs/train/stack_v4f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 0/10 · stack red on blue 0/10

stack_v3 1 run · 2026-08-24

2026-08-24-stack_v3f-040000

checkpoint: outputs/train/stack_v3f/checkpoints/040000/pretrained_model

go over red 10/10 · go over blue 10/10 · go over green 10/10 · pick up red 0/10 · stack red on blue 0/10

stack_v2 2 runs · 2026-08-23

2026-08-23-stack_v2t-040000

checkpoint: outputs/train/stack_v2t/checkpoints/040000/pretrained_model

go over red 5/10 · go over blue 2/10 · go over green 6/10 · pick up red 0/10 · stack red on blue 0/10

2026-08-23-stack_v2f-040000

checkpoint: outputs/train/stack_v2f/checkpoints/040000/pretrained_model

go over red 6/10 · go over blue 7/10 · go over green 4/10 · pick up red 0/10 · stack red on blue 0/10

stack_v1 2 runs · 2026-08-22

2026-08-22-stack_v1f-040000

checkpoint: outputs/train/stack_v1f/checkpoints/040000/pretrained_model

go over red 6/10 · go over blue 6/10 · go over green 5/10 · pick up red 0/10 · stack red on blue 0/10

2026-08-22-stack_v1-040000

checkpoint: outputs/train/stack_v1/checkpoints/040000/pretrained_model

go over red 4/10 · go over blue 4/10 · go over green 4/10 · pick up red 0/10 · stack red on blue 0/10