{
  "training_metadata": {
    "timestamp": "20251030_133401",
    "training_date": "2025-10-30",
    "training_time": "19:48:49",
    "final_epoch": 2.321353065539112,
    "total_steps": 550,
    "status": "completed"
  },
  "model_config": {
    "base_model": "Kwaipilot/KAT-Dev-72B-Exp",
    "model_type": "causal_lm",
    "architecture": "Qwen2ForCausalLM"
  },
  "lora_config": {
    "r": 64,
    "lora_alpha": 128,
    "lora_dropout": 0.05,
    "target_modules": [
      "q_proj",
      "k_proj",
      "v_proj",
      "o_proj",
      "gate_proj",
      "up_proj",
      "down_proj"
    ]
  },
  "training_config": {
    "num_epochs": 3,
    "per_device_train_batch_size": 2,
    "per_device_eval_batch_size": 2,
    "gradient_accumulation_steps": 8,
    "effective_batch_size": 64,
    "learning_rate": 5e-05,
    "lr_scheduler_type": "cosine",
    "warmup_ratio": 0.03,
    "weight_decay": 0.1,
    "max_grad_norm": 0.5,
    "bf16": true,
    "gradient_checkpointing": true,
    "optim": "adamw_torch",
    "logging_steps": 10,
    "save_steps": 50,
    "eval_steps": 25
  },
  "dataset_info": {
    "train_samples": 15129,
    "eval_samples": 1682,
    "max_seq_length": 8192,
    "sample_packing": false
  },
  "hardware_config": {
    "num_gpus": 4,
    "gpu_model": "NVIDIA H200",
    "distributed_strategy": "DeepSpeed ZeRO-2",
    "flash_attention": "2.8.3"
  },
  "performance_metrics": {
    "final_train_loss": 0.2793,
    "final_eval_loss": 0.3765236437320709,
    "final_train_perplexity": 1.322203945559979,
    "final_eval_perplexity": 1.457209992899547,
    "final_token_accuracy": 0.9227368004620076,
    "initial_loss": 1.6654,
    "initial_perplexity": 5.2877879419709135,
    "initial_accuracy": 0.6416946474462748
  },
  "framework_versions": {
    "torch": "2.9.0+cu128",
    "transformers": "4.57.1",
    "peft": "0.17.1",
    "trl": "0.24.0",
    "deepspeed": "0.18.1",
    "flash_attn": "2.8.3",
    "python": "3.12.3"
  },
  "special_features": {
    "flash_attention_2": true,
    "gradient_checkpointing": true,
    "bf16_training": true,
    "sample_packing": false,
    "deepspeed_zero2": true,
    "distributed_training": true
  }
}