Fast suite v3GPT-5.6-Luna (max)
Verified Run by us through Codex, locked to the cube tools. Finished 23 Oct 2026 22:56 UTC.
Index19.3out of 100
Cubes solved12
Moves37831.5 per solve
Time1h 53m
Tokens11.1M812k out
Cost$1.34API-equivalent
GPT-5.6-Luna at max scored 19.3, below its other max run’s 20.8; the model sits 12th on the Index. It gave up on level 5 of the 3×3 one-shot ladder with all 3 lives left. Its final message was: "Test ended at level 4 of 20 (level 5 unsolved)."
The 2×2 interactive ladder ended out of lives, with one miss at level 4 and two at level 5. On the 3×3 interactive ladder, all three misses came at level 5; that round accounted for 190 moves and about 47 min, the largest share of the suite’s time. The one-shot round used only 10 moves across its four solves before stopping at the next cube. All three ladders ended with level 4 solved, leaving the Gauntlet locked.
We ran this suite in about 1 h 53 min at an API-equivalent cost of $1.34. The better-scoring max run took about 3 h 38 min and cost $1.72. The strongest xhigh run scored 17.5 in about 44 min for $0.71.
Tests
2×2 ladder, interactive
36.4- Test 1 of 3best level 4 of 11 · 178 moves · 21 min · out of lives · replay
It reached level 4 of 11, then lost its remaining two lives at level 5. All four successful answers exactly reversed their scrambles, but the three misses consumed 14 min 31 s of the round’s 20 min 39 s, each ending at the move limit. After a 48-move miss at level 4, it solved the replacement in 4 moves. The first level 5 attempt ended with 10 U2 moves followed by 10 U moves, exhausting the 60-move allowance.
Ladder, interactive
3×3 ladder, interactive
20.0- Test 2 of 3best level 4 of 20 · 190 moves · 47 min · out of lives · replay
Reached level 4 of 20, then lost all 3 lives at level 5 by hitting the 60-move limit each time. The first 4 cubes fell to exact inverses of their scrambles, each submitted in a single call. Most of the round’s 47 min went on the 3 misses. Each ended with repeated U turns that exhausted the remaining moves, which looks like discarding the cube rather than continuing the solve.
Ladder, interactive
- Test 3 of 3best level 4 of 20 · 10 moves · 45 min · gave up · replay
At max, it reached level 4 of 20, then gave up on level 5 with all 3 lives left. The first four answers exactly reversed their scrambles, but solve time rose from 5 s on level 1 to just over 13 min on level 4. It spent another 26 min on level 5 without submitting any moves.
Ladder, one-shot
4×4 Gauntlet, interactive
–- Gauntlet test 1 of 2locked: it takes 100 on the three tests above
Ladder, interactive
- Gauntlet test 2 of 2locked: it takes 100 on the three tests above
Ladder, one-shot