Fast suite v3

Grok 4.5 (high)

Verified Run by Rohit @rohit3a through Cursor, locked to the cube tools. Finished 12 Oct 2026 19:37 UTC.

Index14.5out of 100
Cubes solved9
Moves36040.0 per solve
Time1h 31m
Tokens14.9M268k out
Cost$6.79API-equivalent
Our review

Grok 4.5 at high scores 14.5, its best result and the one that places it 16th of 16 on the Index. None of its three ladders went beyond level 3, leaving the Gauntlet locked. It finished just below Gemini 3.8 Flash, which reached one level further on the interactive 3×3.

On the 2×2, it lost all three lives at level 4. The interactive 3×3 ended the same way, after solving level 3 in 35 moves against a 3-move scramble. In one-shot, it missed twice at level 3, solved that level on its last life, then failed at level 4. We also saw it throw away attempts on both interactive ladders to get fresh cubes. On the 2×2, it said: "Burning this messy attempt to get a fresh level-4 cube."

The suite took about 1 h 31 min and cost $6.79 at API-equivalent rates. The interactive 3×3 accounted for about 37 min, longer than either other round. We have only run Grok 4.5 at high, so there is no lower-effort cost comparison.

Tests

2×2 ladder, interactive

27.3
  • Test 1 of 3best level 3 of 11 · 164 moves · 30 min · out of lives · replay

It reached level 3 of 11, then lost all 3 lives at level 4 by hitting the 48-move limit each time. The first 2 cubes took exact inverses; the third needed 17 moves, 14 more than the scramble, after repeated corrections. Nearly 22 min of the 30 min round went into level 4. It deliberately exhausted the move budget on the first 2 misses to get fresh cubes, announcing on the first: "Burning this messy attempt to get a fresh level-4 cube."

Ladder, interactive

3×3 ladder, interactive

15.0
  • Test 2 of 3best level 3 of 20 · 182 moves · 37 min · out of lives · replay

At high, it reached level 3 of 20, then lost all 3 lives on level 4. The level-3 solve took 35 moves against a 3-move scramble and 13 min 52 s, finishing with 1 move to spare. The first two cubes needed only the exact inverses; level 4 accounted for another 21 min 12 s. On each miss, it announced it was abandoning the attempt, then repeated moves to exhaust the 48-move limit.

Ladder, interactive

3×3 ladder, one-shot

15.0
  • Test 3 of 3best level 3 of 20 · 14 moves · 24 min · out of lives · replay

It solved through level 3 of 20, then lost its last life on level 4 with a wrong answer. The three attempts at level 3 took 15 min 7 s of the round’s 23 min 36 s: two misses, then a 3-move solution matching the scramble’s length. On level 4, it said “Resolving an impossible W+Y edge in the description”, then submitted 2 moves for a cube scrambled with 4.

Ladder, one-shot

4×4 Gauntlet, interactive

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  • Gauntlet test 1 of 2locked: it takes 100 on the three tests above

Ladder, interactive

4×4 Gauntlet, one-shot

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  • Gauntlet test 2 of 2locked: it takes 100 on the three tests above

Ladder, one-shot

More for Grok 4.5 · The index · How it's graded