tokenizer_config.json

{
  "tokenizer_class": "GPTS25BPE",
  "model_type": "gpt-s2.5",
  "vocab_size": 8192,
  "add_prefix_space": false,
  "note": "8192-vocab BPE (byte-level). This is a custom BPE, not a standard HF tokenizer; load bpe_8k.json / tokenizer.json directly."
}