random-init altmin: k=48, lr=0.0003, 30000000 samples
  step   2000/7324  mse=0.16599  dead=0  fidelity=0.3642
  step   4000/7324  mse=0.13918  dead=0  fidelity=0.4329
  step   6000/7324  mse=0.12992  dead=2  fidelity=0.4546

trained in 343.0s
running eval...
  true_l0=34.48436  sae_l0=35.480335  dead_latents=2193  shrinkage=0.9371628051757812  explained_variance=0.8787228269190444  mcc=0.42128223180770874  uniqueness=0.6177978515625  classification/precision=0.44189247488975525  classification/recall=0.40720292925834656  classification/f1_score=0.2774967551231384  classification/accuracy=0.9816662073135376
wrote runs/altmin_random_k48_s1/results.json