{
  "checks": {
    "tokenizer_exact_roundtrips": true,
    "special_ids_distinct_and_persistent": true,
    "chat_template_real_newlines_and_generation_prefix": true,
    "causality_and_multitoken_and_single_token_KV_cache": true,
    "left_padding_and_beam_generation": true,
    "labels_shifted_exactly_once_and_minus100_mask": true,
    "tiny_model_overfit_and_checkpointed_backward": {
      "initial": 10.42803955078125,
      "final": 5.2051544189453125,
      "updates": 15
    },
    "tiny_save_reload_exact_logits": true,
    "full_model_load_no_missing_unexpected_or_mismatched_weights": true,
    "full_model_parameter_count_and_tied_embeddings": 509943936,
    "full_BF16_save_reload_exact_logits": true,
    "full_model_cached_generation_smoke": true,
    "full_model_BF16_forward_backward_all_gradients_finite_nonzero": {
      "loss": 11.141535758972168,
      "parameter_tensors": 299
    },
    "pretraining_runner_tiny_CPU_two_updates_and_exact_checkpoint_resume": true,
    "replacement_first_shard_tensor_bytes_match_original_backup": true
  },
  "hardware": "CPU; no CUDA/Unsloth Studio validation performed",
  "passed": true,
  "limitations": [
    "Full-sized model is randomly initialized, not pretrained.",
    "CUDA throughput, memory fit, long-sequence training, and Unsloth Studio integration were not tested.",
    "No tested context-extension recipe, chat skill, or coding skill is claimed.",
    "Tiny model overfit is a plumbing test, not a capability result."
  ],
  "test_dependencies": {
    "torch": "2.6.0+cpu",
    "transformers": "4.57.1",
    "datasets": "4.4.1"
  }
}