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karvonen-chessgpt-50m-mlx-bf16
N8Programs/karvonen-chessgpt-50m-mlx-bf16
karvonen-chessgpt-50m-mlx-bf16 is a text generation model from N8Programs. Use it when you need the model to write or continue text. It is set up for mlx.
This repository contains the local MLX/bfloat16 conversion of Adam Karvonen's 16-layer ChessGPT checkpoint used by the ChessGPT negative-control runs in the ICLManyReplication artifact for "Many Next-Token Predictors…
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At a glance
- Task
- Text Generation
- Library
- mlx
- Model type
- chess_gpt
- Access
- Public
- Created
- Jul 7, 2026
- Updated
- Jul 7, 2026
- SHA
- 425695f6
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Model card
From the Hugging Face model README
Karvonen ChessGPT 50M MLX BF16
This repository contains the local MLX/bfloat16 conversion of Adam Karvonen's 16-layer ChessGPT checkpoint used by the ChessGPT negative-control runs in the ICLManyReplication artifact for "Many Next-Token Predictors are In-Context Learners".
The local config records the source as:
- source repo:
adamkarvonen/chess_llms - source checkpoint:
lichess_16layers_ckpt_no_optimizer.pt - source dataset: 7GB Lichess Dataset
- source iteration: 600000
- parameters: 50,888,704
The upload includes the converted model.safetensors, tokenizer files, and the
custom chess_gpt.py model implementation used by the replication harness.
Intended Use
This checkpoint is intended as a drop-in artifact for reproducing the ChessGPT
negative-control row in ICLManyReplication. Inputs are character-level PGN; the
source model notes that prompts should be prefixed with ;, the training
delimiter between games.
- Task
- Text Generation
- Library
- mlx
- Type
- chess_gpt
- Created
- Jul 7, 2026
- Updated
- Jul 7, 2026