Before you dive in
What you’ll find in the original
- Represent each position as FEN plus side to move and offer legal UCI moves as Choice options.
- The author found bounded legal moves fit Jev better than generating English one character at a time.
- Leaderboard results put Jev near some reasoning models, but game counts and intervals make the result exploratory.
Worth knowing
Results, pricing, and rankings are reported by the author and can change with the live leaderboard.