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{
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  "base_model": "openai/gpt-oss-20b",
  "renderer_name": "gpt_oss_medium_reasoning",
  "checkpoint_uri": "tinker://74ca18ef-36ae-5a4d-9aab-21ac220f42dd:train:0/sampler_weights/final",
  "token_usage": {
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    "num_steps": 20
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  "trainer_config_snapshot": {
    "kind": "grpo",
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    "renderer_name": "gpt_oss_medium_reasoning",
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    "num_iters": 20,
    "save_every": 5,
    "max_tokens": 8192,
    "lora_rank": 32,
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    "reward": {
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  }
}