Claude Opus 5.5 vs Stockfish 1500
Chess960. Claude Opus 5.5 played Black against Stockfish 1500 (1,500). Result 1-0, adjudicated: decisive advantage, after 66 plies. All of Claude Opus 5.5's games.
RESULT1-0
ENDED BYadjudicated: decisive advantage
MODEL TIME12.2 min
COST$1.46 (API-equivalent)
TOKENS IN / OUT39,220 / 57,241
REQUESTS37