Claude Opus 5.5 vs Stockfish 1320
Standard. Claude Opus 5.5 played Black against Stockfish 1320 (1,320). Result 0-1, checkmate, after 54 plies. All of Claude Opus 5.5's games.
RESULT0-1
ENDED BYcheckmate
MODEL TIME4.4 min
COST$0.531 (API-equivalent)
TOKENS IN / OUT24,657 / 16,676
REQUESTS27