Fast suite v3GPT-5.6-Terra (high)
Verified Run by Hars @thisishars through Codex, locked to the cube tools. Finished 11 Oct 2026 23:26 UTC.
Index9.6out of 100
Cubes solved6
Moves22237.0 per solve
Time20 min
Tokens1.2M46k out
Cost$1.07API-equivalent
GPT-5.6-Terra scores 9.6 at high, below its best result at max, which puts it 11th on the Index. On the interactive 2×2 ladder, it threw away 2 cubes at level 3 by repeating a single move until the move limit ran out, including U 36 times, to get a fresh cube.
The 2×2 ended out of lives after level 2, taking 11 min 12 s, more than half the suite’s time. The interactive 3×3 also stopped after level 2: it lost one life there, then discarded both level 3 cubes through repeated moves, including R 36 times. In the one-shot 3×3, all 3 misses came at level 3. None of the tests got past a cube scrambled by 3 moves, and the Gauntlet stayed locked.
We spent 20 min 7 s on the high suite, at an API-equivalent cost of $1.07. The low run scored less but finished in 5 min 56 s for $0.42; the best-scoring max run took 4 h 34 min 30 s and cost $10.20.
Tests
2×2 ladder, interactive
18.2- Test 1 of 3best level 2 of 11 · 111 moves · 11 min · out of lives · replay
At high, it reached level 2 of 11 before losing all 3 lives at level 3. It threw away the last 2 cubes by repeating U 36 times apiece, using up each move limit to get a fresh cube, until no lives remained. The first 2 solves matched their scrambles at 1 and 2 moves. Most of the round went into the first level 3 attempt: 8 min 40 s before hitting the move limit, followed by the throwaways in 9 s and 6 s.
Ladder, interactive
3×3 ladder, interactive
10.0- Test 2 of 3best level 2 of 20 · 99 moves · 6 min · out of lives · replay
It reached level 2 of 20 at high, then ran out of lives at level 3. It threw away both level 3 cubes by repeating R 36 times on each, using up the move limit to get a fresh cube until no lives remained. Most of the time went into the first level 2 attempt: 4 min 3 s and 24 moves without a solve. The replacement was solved in 2 moves, as short as the scramble.
Ladder, interactive
- Test 3 of 3best level 2 of 20 · 12 moves · 3 min · out of lives · replay
It reached level 2 of 20, then lost all 3 lives on level 3 with wrong answers. The first two solves matched their scramble lengths and took 47 s combined; the first miss alone took 94 s. It submitted the same answer, U B' R', for two different cubes before changing moves on the final miss.
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