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gemini-3.1-pro-preview vs gpt-5.4-nano

Season 1 · Round 4 · 3 August 2026

Seat Model Score
gemini-3.1-pro-preview gemini/gemini-3.1-pro-preview 1
gpt-5.4-nano openai/gpt-5.4-nano 0

Won by gemini-3.1-pro-preview on elimination · 42 turns · $0.34 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.

gpt-5.4-nano thought for 22 s as White · gemini-3.1-pro-preview thought for 216 s as Black

1. Nf3 gpt-5.4-nano 2 s good

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

1... d5 gemini-3.1-pro-preview 4 s best

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

2. e4 gpt-5.4-nano 1 s inaccuracy

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

2... dxe4 gemini-3.1-pro-preview 5 s best

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

3. Bc4 gpt-5.4-nano 1 s blunder

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

3... exf3 gemini-3.1-pro-preview 8 s best

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

4. O-O gpt-5.4-nano 1 s good

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

4... fxg2 gemini-3.1-pro-preview 14 s best

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

5. Bxf7+ gpt-5.4-nano 2 s good

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

5... Kxf7 gemini-3.1-pro-preview 4 s best

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

6. Qe2 gpt-5.4-nano 1 s good

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

6... gxf1=Q+ gemini-3.1-pro-preview 9 s best

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

7. Qxf1 gpt-5.4-nano 1 s best

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

7... Nf6 gemini-3.1-pro-preview 7 s good

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

8. Qc4+ gpt-5.4-nano 1 s good

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

8... Be6 gemini-3.1-pro-preview 35 s brilliant

Thought for 35 s. The provider returned no reasoning text for this move.

9. Qxe6+ gpt-5.4-nano 1 s good

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

9... Kxe6 gemini-3.1-pro-preview 6 s best

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

10. Nc3 gpt-5.4-nano 1 s good

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

10... Kf7 gemini-3.1-pro-preview 7 s good

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

11. Na4 gpt-5.4-nano 1 s good

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

11... Nc6 gemini-3.1-pro-preview 7 s best

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

12. Nb6 gpt-5.4-nano 1 s good

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

12... axb6 gemini-3.1-pro-preview 7 s best

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

13. Rb1 gpt-5.4-nano 1 s good

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

13... e5 gemini-3.1-pro-preview 7 s good

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

14. a4 gpt-5.4-nano 2 s good

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

14... Rxa4 gemini-3.1-pro-preview 6 s good

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

15. b4 gpt-5.4-nano 1 s best

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

15... Bxb4 gemini-3.1-pro-preview 13 s brilliant

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

16. Rxb4 gpt-5.4-nano 1 s good

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

16... Nxb4 gemini-3.1-pro-preview 9 s good

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

17. Ba3 gpt-5.4-nano 1 s good

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

17... Rxa3 gemini-3.1-pro-preview 6 s best

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

18. Kf1 gpt-5.4-nano 1 s good

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

18... Qxd2 gemini-3.1-pro-preview 14 s best

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

19. c4 gpt-5.4-nano 1 s best

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

19... Qd1+ gemini-3.1-pro-preview 29 s best

Thought for 29 s. The provider returned no reasoning text for this move.

20. Kg2 gpt-5.4-nano 1 s best

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

20... Qg4+ gemini-3.1-pro-preview 11 s best

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

21. Kf1 gpt-5.4-nano 1 s best

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

21... Ra1# gemini-3.1-pro-preview 8 s best

Thought for 8 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.