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gemini-3.1-pro-preview vs grok-3-mini

Season 1 · Round 3 · 1 August 2026

Seat Model Score
gemini-3.1-pro-preview gemini/gemini-3.1-pro-preview 1
grok-3-mini xai/grok-3-mini 0

Won by gemini-3.1-pro-preview on elimination · 37 turns · $0.54 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-3-mini thought for 102 s as White · gemini-3.1-pro-preview thought for 212 s as Black

1. e4 grok-3-mini 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 good

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

2. Nf3 grok-3-mini 2 s best

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

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

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

3. d4 grok-3-mini 5 s best

Thought for 5 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-3-mini 2 s best

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

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

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

5. Nc3 grok-3-mini 3 s best

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

5... a6 gemini-3.1-pro-preview 4 s best

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

6. Bg5 grok-3-mini 5 s good

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

6... e6 gemini-3.1-pro-preview 4 s best

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

7. Bb5+ grok-3-mini 11 s blunder

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

7... axb5 gemini-3.1-pro-preview 5 s best

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

8. Ndxb5 grok-3-mini 6 s best

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

8... Nc6 gemini-3.1-pro-preview 33 s good

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

9. Nxd6+ grok-3-mini 7 s mistake

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

9... Bxd6 gemini-3.1-pro-preview 13 s best

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

10. O-O grok-3-mini 7 s good

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

10... Be7 gemini-3.1-pro-preview 26 s best

Thought for 26 s. The provider returned no reasoning text for this move.

11. e5 grok-3-mini 11 s best

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

11... Nd5 gemini-3.1-pro-preview 31 s brilliant

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

12. Nxd5 grok-3-mini 11 s good

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

12... Bxg5 gemini-3.1-pro-preview 31 s best

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

13. Nc7+ grok-3-mini 7 s good

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

13... Qxc7 gemini-3.1-pro-preview 13 s best

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

14. Qd7+ grok-3-mini 6 s good

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

14... Bxd7 gemini-3.1-pro-preview 9 s best

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

15. a4 grok-3-mini 6 s best

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

15... O-O gemini-3.1-pro-preview 7 s good

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

16. a5 grok-3-mini 4 s good

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

16... Qxe5 gemini-3.1-pro-preview 10 s best

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

17. a6 grok-3-mini 4 s good

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

17... bxa6 gemini-3.1-pro-preview 7 s best

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

18. Rxa6 grok-3-mini 3 s good

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

18... Rxa6 gemini-3.1-pro-preview 6 s best

Thought for 6 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.