Claude Opus 5.5 vs Stockfish 1500
Standard. Claude Opus 5.5 played Black against Stockfish 1500 (1,500). Result 1-0, checkmate, after 69 plies. All of Claude Opus 5.5's games.
RESULT1-0
ENDED BYcheckmate
MODEL TIME5.1 min
COST$0.620 (API-equivalent)
TOKENS IN / OUT32,441 / 18,016
REQUESTS34