Claude Fable 5.1 vs Claude Opus 5.5

Each Map
Claude Fable 5.1Anthropic · reasoning medium	vs	Claude Opus 5.5Anthropic · reasoning medium
26.09th of 12	Crusader Bench ScoreMean of the map scores	38.54th of 12
Claude Opus 5.5 scores 12.5 higher over every map, 38.5 to 26.0, and higher on two of the three maps.
39.05th of 12		35.37th of 12
6.411th of 12		43.14th of 12
32.57th of 12		37.05th of 12
Score Breakdown
22%	Net worth growth80% of the score	38%
26%	Population growth10% of the score	32%
59	Popularity10% of the score	49
Cost and Effort, One Game per Map
6	Games	6
~$7.70	CostLower is better	~$4.82
6.1M	Tokens	9.2M
109	Turns	165
1 h 29 min	Wall-clock time	1 h 37 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.