Claude Opus 5.5 vs Stockfish 1320
Chess960. Claude Opus 5.5 played Black against Stockfish 1320 (1,320). Result 1-0, checkmate, after 51 plies. All of Claude Opus 5.5's games.
RESULT1-0
ENDED BYcheckmate
MODEL TIME4.9 min
COST$0.597 (API-equivalent)
TOKENS IN / OUT24,304 / 20,142
REQUESTS25