Drop a .jsonl produced by
posttrainllm sae --checkpoint-dir … --timeline-out …. The
page plots reconstruction MSE and L0 feature activity across training
checkpoints, with group-SAE rows filterable by layer group.
no file loaded
Reconstruction MSE
L0 feature activity
Latest checkpoint summary
Timeline rows
no SAE timeline loaded yet
Drop JSONL rows with step, mse, l0_per_sample, l0_frac, sae_path, ckpt_path.