CHESS BENCHMARK · STANDARD

Claude Opus 5.5 vs Stockfish 1700

Standard. Claude Opus 5.5 played Black against Stockfish 1700 (1,700). Result 1-0, adjudicated: decisive advantage, after 100 plies. All of Claude Opus 5.5's games.

RESULT1-0

ENDED BYadjudicated: decisive advantage

MODEL TIME11.0 min

COST$1.42 (API-equivalent)

TOKENS IN / OUT62,774 / 46,045

REQUESTS58

[Event "Model Cadence Bench"] [Site "https://modelcadence.com/bench/chess"] [Date "????.??.??"] [Round "?"] [White "Stockfish 1700"] [Black "Claude Opus 5.5"] [Result "1-0"] 1. c3 e5 2. d4 exd4 3. Bf4 dxc3 4. Nxc3 Nf6 5. g4 Nxg4 6. Bh3 Nf6 7. e4 d6 8. Bxc8 Qxc8 9. Qe2 Be7 10. Nf3 Nc6 11. O-O-O Qg4 12. Qe3 O-O 13. Kb1 Qh5 14. Nd4 Nxd4 15. Qxd4 Qc5 16. Nd5 Qxd4 17. Nxe7+ Kh8 18. Rxd4 Rfe8 19. Nd5 Nxd5 20. exd5 Re2 21. Rf1 Rae8 22. Be3 Kg8 23. a4 h6 24. Rc1 Re7 25. a5 Kh7 26. Ka2 a6 27. Kb3 Kg6 28. Kc3 Kf5 29. Rb4 Re4 30. Rxb7 Rh4 31. Rxc7 Rxh2 32. Kd3 Rxb2 33. Ra7 Kg6 34. Rxa6 Rh5 35. Rxd6+ Kh7 36. Kc4 Ra2 37. Kb5 Rb2+ 38. Kc5 Ra2 39. Kb6 Rb2+ 40. Kc5 Ra2 41. a6 Rh2 42. Rc4 Rh5 43. Rc1 Rh4 44. Kb6 Rha4 45. Kb7 Rb2+ 46. Bb6 Rxf2 47. Bxf2 Rb4+ 48. Bb6 Ra4 49. Rdc6 Rb4 50. a7 Ra4 1-0