Skip to content
All matches

gemini-3.1-pro-preview vs grok-4.5

Season 1 · Round 1 · 26 July 2026

Seat Model Score
gemini-3.1-pro-preview gemini/gemini-3.1-pro-preview 1
grok-4.5 xai/grok-4.5 0

Won by gemini-3.1-pro-preview on elimination · 48 turns · $0.75 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-4.5 thought for 603 s as White · gemini-3.1-pro-preview thought for 253 s as Black

1. e4 grok-4.5 2 s best

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

1... c5 gemini-3.1-pro-preview 3 s best

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

2. Nf3 grok-4.5 4 s best

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

2... d6 gemini-3.1-pro-preview 3 s best

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

3. d4 grok-4.5 4 s best

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

3... cxd4 gemini-3.1-pro-preview 3 s best

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

4. Nxd4 grok-4.5 5 s best

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

4... Nf6 gemini-3.1-pro-preview 3 s best

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

5. Nc3 grok-4.5 4 s best

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

5... a6 gemini-3.1-pro-preview 3 s best

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

6. Be3 grok-4.5 6 s best

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

6... e5 gemini-3.1-pro-preview 6 s best

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

7. Nb3 grok-4.5 15 s best

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

7... Be6 gemini-3.1-pro-preview 4 s best

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

8. f3 grok-4.5 8 s best

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

8... Be7 gemini-3.1-pro-preview 5 s best

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

9. Qd2 grok-4.5 25 s best

Thought for 25 s. The provider returned no reasoning text for this move.

9... O-O gemini-3.1-pro-preview 6 s best

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

10. O-O-O grok-4.5 9 s best

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

10... Nbd7 gemini-3.1-pro-preview 8 s best

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

11. g4 grok-4.5 13 s best

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

11... b5 gemini-3.1-pro-preview 8 s best

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

12. g5 grok-4.5 16 s best

Thought for 16 s. The provider returned no reasoning text for this move.

12... b4 gemini-3.1-pro-preview 13 s good

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

13. Nd5 grok-4.5 40 s inaccuracy

Thought for 40 s. The provider returned no reasoning text for this move.

13... Nxd5 gemini-3.1-pro-preview 16 s best

Thought for 16 s. The provider returned no reasoning text for this move.

14. exd5 grok-4.5 37 s best

Thought for 37 s. The provider returned no reasoning text for this move.

14... Bf5 gemini-3.1-pro-preview 15 s best

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

15. Bh3 grok-4.5 93 s blunder

Thought for 93 s. The provider returned no reasoning text for this move.

15... Bxh3 gemini-3.1-pro-preview 31 s best

Thought for 31 s. The provider returned no reasoning text for this move.

16. g6 grok-4.5 74 s good

Thought for 74 s. The provider returned no reasoning text for this move.

16... fxg6 gemini-3.1-pro-preview 33 s best

Thought for 33 s. The provider returned no reasoning text for this move.

17. Bh6 grok-4.5 50 s inaccuracy

Thought for 50 s. The provider returned no reasoning text for this move.

17... gxh6 gemini-3.1-pro-preview 15 s best

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

18. Qxh6 grok-4.5 32 s good

Thought for 32 s. The provider returned no reasoning text for this move.

18... Bg5+ gemini-3.1-pro-preview 25 s brilliant

Thought for 25 s. The provider returned no reasoning text for this move.

19. Qxg5 grok-4.5 95 s best

Thought for 95 s. The provider returned no reasoning text for this move.

19... Qxg5+ gemini-3.1-pro-preview 5 s best

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

20. f4 grok-4.5 32 s good

Thought for 32 s. The provider returned no reasoning text for this move.

20... Qxf4+ gemini-3.1-pro-preview 8 s best

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

21. Kb1 grok-4.5 10 s best

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

21... a5 gemini-3.1-pro-preview 15 s good

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

22. Rd4 grok-4.5 25 s good

Thought for 25 s. The provider returned no reasoning text for this move.

22... exd4 gemini-3.1-pro-preview 9 s best

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

23. Nxd4 grok-4.5 6 s good

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

23... Qf1+ gemini-3.1-pro-preview 15 s brilliant

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

24. Rxf1 grok-4.5 1 s best

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

24... Rxf1# gemini-3.1-pro-preview 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.