gpt-5.4-mini vs grok-4.3

Season 1 · Round 1 · 26 July 2026

Seat	Model	Score
gpt-5.4-mini	openai/gpt-5.4-mini	0
grok-4.3	xai/grok-4.3	1

Won by grok-4.3 on elimination · 121 turns · $0.44 of model time

Move by move

This match was played before reasoning capture. Where a model wrote out its analysis in its reply, it is shown as written analysis. Hidden thinking was not recorded.

grok-4.3 thought for 501 s as White · gpt-5.4-mini thought for 49 s as Black

1. e4 grok-4.3 2 s best

Thought for 2 s. The provider returned no reasoning text for this move.

1... e5 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

2. Nf3 grok-4.3 2 s best

Thought for 2 s. The provider returned no reasoning text for this move.

2... Nc6 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

3. Bb5 grok-4.3 4 s best

Thought for 4 s. The provider returned no reasoning text for this move.

3... Nf6 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

4. O-O grok-4.3 3 s best

Thought for 3 s. The provider returned no reasoning text for this move.

4... Nxe4 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

5. Re1 grok-4.3 4 s best

Thought for 4 s. The provider returned no reasoning text for this move.

5... Nxf2 gpt-5.4-mini 1 s mistake forced substitution

Played from memory: no reasoning was produced for this move.

6. Kxf2 grok-4.3 11 s best

Thought for 11 s. The provider returned no reasoning text for this move.

6... Qe7 gpt-5.4-mini 1 s inaccuracy

Played from memory: no reasoning was produced for this move.

7. Nc3 grok-4.3 10 s best

Thought for 10 s. The provider returned no reasoning text for this move.

7... Qh4+ gpt-5.4-mini 1 s mistake

Played from memory: no reasoning was produced for this move.

8. Nxh4 grok-4.3 7 s best

Thought for 7 s. The provider returned no reasoning text for this move.

8... Be7 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

9. Rxe5 grok-4.3 7 s brilliant

Thought for 7 s. The provider returned no reasoning text for this move.

9... Nxe5 gpt-5.4-mini 2 s best

Played from memory: no reasoning was produced for this move.

10. Qh5 grok-4.3 14 s good

Thought for 14 s. The provider returned no reasoning text for this move.

10... Bxh4+ gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

11. Qxh4 grok-4.3 5 s best

Thought for 5 s. The provider returned no reasoning text for this move.

11... Ng4+ gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

12. Qxg4 grok-4.3 5 s best

Thought for 5 s. The provider returned no reasoning text for this move.

12... O-O gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

13. Qxg7+ grok-4.3 6 s mistake

Thought for 6 s. The provider returned no reasoning text for this move.

13... Kxg7 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

14. Nd5 grok-4.3 10 s inaccuracy

Thought for 10 s. The provider returned no reasoning text for this move.

14... Re8 gpt-5.4-mini 1 s mistake

Played from memory: no reasoning was produced for this move.

15. Nxc7 grok-4.3 12 s best

Thought for 12 s. The provider returned no reasoning text for this move.

15... Re2+ gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

16. Kxe2 grok-4.3 12 s good

Thought for 12 s. The provider returned no reasoning text for this move.

16... Kf6 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

17. Nd5+ grok-4.3 5 s good

Thought for 5 s. The provider returned no reasoning text for this move.

17... Ke5 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

18. d4+ grok-4.3 7 s good

Thought for 7 s. The provider returned no reasoning text for this move.

18... Kxd4 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

19. Be3+ grok-4.3 4 s inaccuracy

Thought for 4 s. The provider returned no reasoning text for this move.

19... Ke4 gpt-5.4-mini 1 s inaccuracy

Played from memory: no reasoning was produced for this move.

20. Nc3+ grok-4.3 9 s best

Thought for 9 s. The provider returned no reasoning text for this move.

20... Kf5 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

21. Rf1+ grok-4.3 15 s best

Thought for 15 s. The provider returned no reasoning text for this move.

21... Ke6 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

22. Rf6+ grok-4.3 7 s mistake

Thought for 7 s. The provider returned no reasoning text for this move.

22... Kxf6 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

23. Ne4+ grok-4.3 9 s inaccuracy

Thought for 9 s. The provider returned no reasoning text for this move.

23... Ke5 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

24. Nc5 grok-4.3 28 s good

Thought for 28 s. The provider returned no reasoning text for this move.

24... Kd6 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

25. Nxb7+ grok-4.3 7 s blunder

Thought for 7 s. The provider returned no reasoning text for this move.

25... Ke7 gpt-5.4-mini 1 s blunder

Played from memory: no reasoning was produced for this move.

26. Bc5+ grok-4.3 10 s best

Thought for 10 s. The provider returned no reasoning text for this move.

26... Ke8 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

27. Nd6+ grok-4.3 8 s best

Thought for 8 s. The provider returned no reasoning text for this move.

27... Kd8 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

28. Nxf7+ grok-4.3 6 s good

Thought for 6 s. The provider returned no reasoning text for this move.

28... Ke8 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

29. Nd6+ grok-4.3 12 s best

Thought for 12 s. The provider returned no reasoning text for this move.

29... Kd8 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

30. Bb6+ grok-4.3 10 s blunder

Thought for 10 s. The provider returned no reasoning text for this move.

30... Ke7 gpt-5.4-mini 1 s blunder

Played from memory: no reasoning was produced for this move.

31. Nxc8+ grok-4.3 6 s inaccuracy

Thought for 6 s. The provider returned no reasoning text for this move.

31... Rxc8 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

32. Bxd7 grok-4.3 11 s blunder

Thought for 11 s. The provider returned no reasoning text for this move.

32... Rxc2+ gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

33. Kd3 grok-4.3 7 s best

Thought for 7 s. The provider returned no reasoning text for this move.

33... Rc1 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

34. Bc5+ grok-4.3 7 s brilliant

Thought for 7 s. The provider returned no reasoning text for this move.

34... Kd8 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

35. Bb6+ grok-4.3 5 s brilliant

Thought for 5 s. The provider returned no reasoning text for this move.

35... Kxd7 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

36. Bxa7 grok-4.3 9 s best

Thought for 9 s. The provider returned no reasoning text for this move.

36... Rc2 gpt-5.4-mini 1 s blunder

Played from memory: no reasoning was produced for this move.

37. Kxc2 grok-4.3 6 s best

Thought for 6 s. The provider returned no reasoning text for this move.

37... Kc6 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

38. a4 grok-4.3 10 s best

Thought for 10 s. The provider returned no reasoning text for this move.

38... Kd5 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

39. a5 grok-4.3 5 s good

Thought for 5 s. The provider returned no reasoning text for this move.

39... Kc4 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

40. b3+ grok-4.3 6 s good

Thought for 6 s. The provider returned no reasoning text for this move.

40... Kd5 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

41. a6 grok-4.3 5 s best

Thought for 5 s. The provider returned no reasoning text for this move.

41... Ke5 gpt-5.4-mini 2 s best

Played from memory: no reasoning was produced for this move.

42. Bb8+ grok-4.3 7 s good

Thought for 7 s. The provider returned no reasoning text for this move.

42... Kf6 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

43. a7 grok-4.3 6 s best

Thought for 6 s. The provider returned no reasoning text for this move.

43... Ke7 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

44. a8=Q grok-4.3 3 s best

Thought for 3 s. The provider returned no reasoning text for this move.

44... Kf7 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

45. Qb7+ grok-4.3 6 s good

Thought for 6 s. The provider returned no reasoning text for this move.

45... Ke8 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

46. Qc8+ grok-4.3 10 s good

Thought for 10 s. The provider returned no reasoning text for this move.

46... Ke7 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

47. Qc7+ grok-4.3 5 s best

Thought for 5 s. The provider returned no reasoning text for this move.

47... Ke8 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

48. Qd8+ grok-4.3 10 s inaccuracy

Thought for 10 s. The provider returned no reasoning text for this move.

48... Kxd8 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

49. b4 grok-4.3 9 s good

Thought for 9 s. The provider returned no reasoning text for this move.

49... h6 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

50. b5 grok-4.3 8 s good

Thought for 8 s. The provider returned no reasoning text for this move.

50... Ke7 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

51. b6 grok-4.3 7 s best

Thought for 7 s. The provider returned no reasoning text for this move.

51... Kf7 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

52. b7 grok-4.3 12 s best

Thought for 12 s. The provider returned no reasoning text for this move.

52... Kg7 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

53. Be5+ grok-4.3 6 s good

Thought for 6 s. The provider returned no reasoning text for this move.

53... Kg8 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

54. b8=Q+ grok-4.3 5 s best

Thought for 5 s. The provider returned no reasoning text for this move.

54... Kh7 gpt-5.4-mini 1 s good

Played from memory: no reasoning was produced for this move.

55. Qh8+ grok-4.3 9 s brilliant

Thought for 9 s. The provider returned no reasoning text for this move.

55... Kg6 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

56. Qg7+ grok-4.3 11 s brilliant

Thought for 11 s. The provider returned no reasoning text for this move.

56... Kh5 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

57. g4+ grok-4.3 17 s best

Thought for 17 s. The provider returned no reasoning text for this move.

57... Kh4 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

58. Qxh6+ grok-4.3 14 s best

Thought for 14 s. The provider returned no reasoning text for this move.

58... Kxg4 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

59. Qf4+ grok-4.3 18 s brilliant

Thought for 18 s. The provider returned no reasoning text for this move.

59... Kh5 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

60. Qf5+ grok-4.3 13 s best

Thought for 13 s. The provider returned no reasoning text for this move.

60... Kh4 gpt-5.4-mini 1 s best

Played from memory: no reasoning was produced for this move.

61. Bf6# grok-4.3 5 s best

Thought for 5 s. The provider returned no reasoning text for this move.

What this match ran under

Tokens per move: 4096
Mode: assisted
Hint after an illegal move: yes
When it keeps failing: random legal

Why these exist, and what removing them costs.