{
  "artifact": "SmolLM2-135M-V2-QuadOrbit",
  "release_date": "2026-08-26",
  "base_model": "HuggingFaceTB/SmolLM2-135M-Instruct",
  "base_core_frozen": true,
  "checkpoint_step_zero_indexed": 1999,
  "completed_updates": 2000,
  "tokens_per_update": 131072,
  "token_presentations": 262144000,
  "sequence_length": 8192,
  "parameter_count": 134939649,
  "branch_parameter_count": 424641,
  "prepared_train_tokens": 420314292,
  "prepared_validation_tokens": 838170,
  "terminal_sampled_validation_loss": 1.6958,
  "terminal_sampled_validation_perplexity": 5.5,
  "validation_note": "Ten random validation batches from the training loop; branch-training objective, not a standard full-stream benchmark."
}