Andrej Karpathy 3b50b77ed3 fix base_loss to report correct loss by switching the dataloader to the new default

2026-01-13 22:09:36 +00:00

..

__init__.py

initial commit

2025-10-13 06:49:24 -07:00

adamw.py

Add learnable lambdas that gate the residual connection and a skip connection to the input embeddings, solid bump to val_bpb

2026-01-11 18:47:35 +00:00

checkpoint_manager.py

fix base_loss to report correct loss by switching the dataloader to the new default

2026-01-13 22:09:36 +00:00

common.py

fix: safe DDP cleanup (check initialized PG, not just env) (#256)

2025-12-27 20:27:40 -08:00

core_eval.py

initial commit

2025-10-13 06:49:24 -07:00

dataloader.py

Big DataLoader refactor: BOS-aligned dataloaders with epoch tracking for pre/mid-training

2026-01-13 20:05:47 +00:00

dataset.py

initial commit

2025-10-13 06:49:24 -07:00

engine.py

integrate Flash Attention 3. +9% tok_per_sec for d12 with ctx even as low as 2048 out of the box nice. also, ready to tune windows huge

2026-01-11 20:33:19 +00:00

execution.py

nit delete redundant catch/raise in execute

2025-10-29 08:10:03 -07:00

gpt.py

add alternating window size patterns for the GPT layers, following GPT-3. Experimented a bit and found the pattern SSSL to work well - 3 short, 1 long alternating. This is now the new default and the plots look quite a bit better on flops vs. bpb

2026-01-11 21:49:54 +00:00

logo.svg

initial commit

2025-10-13 06:49:24 -07:00

loss_eval.py

fix typos

2025-11-14 11:20:25 +01:00

muon.py

Big Muon optimizer changes inspired by latest of modded-nanogpt. Added Polar Express, Adafactor-style variance reduction, cautious weight decay, schedule weight decay linearly to ramp down to zero. Tuned optimum weight decay for multiple model sizes d8, d12, d16, d20 and found a scaling law with optimum wd \propto 1/channels^2, including it as default into code. --weight_decay of base_train is now default on and configured optimally according to all of these experiments. Solid bump to val_bpb observed as a result of these changes.

2026-01-11 16:56:59 +00:00

report.py

fix small bug where this would break if git stage has deleted files

2026-01-04 19:11:43 +00:00

tokenizer.py

adjust the comment on the regex pattern per recent experimnet see dev/LOG.md

2026-01-13 17:50:39 +00:00

ui.html

Fix conversation scroll to bottom on some browsers + remove duplicated padding (#348)

2025-12-31 13:03:22 -08:00