{
  "stage": "stage1_alignment",
  "dataset": {
    "name": "LibriSpeechTrainClean460Bootstrap",
    "train_manifest": "/workspace/kafka_duplex_data/stage1_trainclean460/train.stage1.jsonl",
    "val_manifest": "/workspace/kafka_duplex_data/stage1_trainclean460/val.stage1.jsonl",
    "text_tokenizer": "mock_text_ids_until_real_tokenizer_is_wired",
    "speech_codec": "mock",
    "chunk_ms": 200,
    "speech_tokens_per_chunk": 10
  },
  "model": {
    "backbone": "Stage1BootstrapLM",
    "context_length": 1024,
    "vocab_size": 53260,
    "hidden_size": 768,
    "num_layers": 12,
    "num_heads": 12,
    "ffw_multiplier": 4,
    "dropout": 0.1
  },
  "optimization": {
    "epochs": 3,
    "effective_batch_size": 32,
    "micro_batch_size": 4,
    "learning_rate": 0.0001,
    "warmup_steps": 1000,
    "weight_decay": 0.01,
    "max_grad_norm": 1.0
  },
  "evaluation": {
    "eval_every_steps": 1000,
    "checkpoint_every_steps": 5000,
    "wer_num_samples": 64,
    "tts_num_prompts": 8
  }
}