Model summary · Edition 1.0

Claude Sonnet 5High

These results come from one run: 7 fixed subjects, 5 rounds each, a 50-question limit, and reasoning setting high. They do not predict results on other subjects or settings.

This page always shows the model’s newest ranked run.

See all 35 rounds → All models

Every question, answer, guess, and source.

Rank: Rank 10of 18 models
Question score: 14.74 Lower is better. 95% confidence interval 12.78 to 16.71.
Rounds solved: 35 of 35 16 format errors
Guesser cost per round: $0.0493 Model time 1m 24s.

See how Claude Sonnet 5 (high) played. All 35 rounds, with every question, answer, guess, and source.

Observations

What stood out in this run.

Counts and ranks from this run only. A subject rank compares this model’s average on that subject with every other model in this edition. Each item links to its rounds.

Best ranks vs other models

Achilles: 5th of 18 models, average 7.60 questions. round 1, round 2, round 3, round 4, round 5
Genghis Khan: 8th of 18 models, average 12.20 questions. round 1, round 2, round 3, round 4, round 5

Lowest ranks vs other models

Garfield: 15th of 18 models, average 21.20 questions. round 1, round 2, round 3, round 4, round 5
Mario: 14th of 18 models, average 8.20 questions. round 1, round 2, round 3, round 4, round 5

Single rounds

Fewest questions in a solved round: 6, on Achilles. round 5
Most questions in a solved round: 33, on Garfield. round 1
Largest spread between rounds: Garfield, from 7 to 33 questions. round 1, round 2, round 3, round 4, round 5
6 wrong guesses in 35 rounds, up to 3 in one round on Albert Schweitzer. round 1

Failed rounds and format errors

16 format errors in 12 rounds. Each one before the question limit used a counted turn. Albert Einstein round 2, Albert Einstein round 3, Albert Schweitzer round 1, Albert Schweitzer round 4, Albert Schweitzer round 5, Stephen King round 3, Garfield round 1, Garfield round 3, Garfield round 4, Genghis Khan round 2, Genghis Khan round 4, Mario round 2

Subjects

Results by subject.

Failed rounds count as 51 questions. Rank compares this subject's average with the other models in edition 1.0. Select a subject or a round to see the game.

Subject	Average questions	Subject rank	Solved	Rounds
Albert Einstein	10.40	12 of 18	5 of 5	10, 13, 10, 10, 9
Albert Schweitzer	27.80	10 of 18	5 of 5	22, 30, 27, 28, 32
Stephen King	15.80	10 of 18	5 of 5	16, 11, 19, 19, 14
Garfield	21.20	15 of 18	5 of 5	33, 7, 31, 22, 13
Achilles	7.60	5 of 18	5 of 5	8, 9, 7, 8, 6
Genghis Khan	12.20	8 of 18	5 of 5	12, 14, 10, 16, 9
Mario	8.20	14 of 18	5 of 5	8, 7, 9, 11, 6

Runs

Runs of this model.

Each edition ranks only the newest complete run of a model. Earlier runs are not ranked and their details are not published.

Current run in edition 1.0: BX-20260728-official-M0005-012, completed 29 Jul 2026.