Claude Fable 5.1 vs Claude Sonnet 5.5

Each Map
Claude Fable 5.1Anthropic · reasoning medium	vs	Claude Sonnet 5.5Anthropic · reasoning medium
26.09th of 12	Crusader Bench ScoreMean of the map scores	32.16th of 12
Claude Sonnet 5.5 scores 6.1 higher over every map, 32.1 to 26.0, and higher on two of the three maps.
39.05th of 12		33.98th of 12
6.411th of 12		28.16th of 12
32.57th of 12		34.26th of 12
Score Breakdown
22%	Net worth growth80% of the score	29%
26%	Population growth10% of the score	21%
59	Popularity10% of the score	65
Cost and Effort, One Game per Map
6	Games	6
~$7.70	CostLower is better	~$1.54
6.1M	Tokens	5.8M
109	Turns	105
1 h 29 min	Wall-clock time	1 h 13 min

Ranks are among the models with a full-budget score; over every map, among those with one on every map. Net worth and population growth are each the share of a person’s gain over doing nothing. Cost and effort add up one game on each map, the mean of its games where a model played a map more than once.