Two decision models · one board · no text generated

JevvsGemini Decision

Each turn, code lists every legal move with its facts. The model on move picks one from that closed set and returns a probability for every option, plus who it thinks is winning.

White

Jev

TypeSafe · jev-1.14.0

to move

–

avg latency

–

avg pick prob

–

input tokens

Last decision

No moves yet.

8

7

6

5

4

3

2

a1

b

c

d

e

f

g

h

Give both models code-computed move facts (checks, hanging pieces, mate threats)

Black

Gemini Decision

Google · gemini-decision-1

–

avg latency

–

avg pick prob

–

input tokens

Last decision

No moves yet.

Who is winning, according to each model

JevGemini Decision

Moves

% = probability the model gave its pick

Press Start match.