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Datasets:
cocohearts
/
4096-bpe

Tasks:
Text Generation
Languages:
English
Size:
1K<n<10K
License:
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openai-n-challenge-4096

Pre-tokenized FineWeb shards for N-challenge using a 4096-vocab SentencePiece BPE tokenizer.

Contents

  • fineweb10B_sp4k/fineweb_val_000000.bin
  • fineweb10B_sp4k/fineweb_train_000001.bin ... fineweb10B_sp4k/fineweb_train_000009.bin
  • tokenizers/fineweb_4k_bpe.model
  • tokenizers/fineweb_4k_bpe.vocab

Tokenizer settings

  • SentencePiece model_type=bpe
  • vocab_size=4096
  • byte_fallback=true
  • character_coverage=0.999
  • bos_id=1, eos_id=2, pad_id=0, unk_id=3

Shard format

Each .bin file is:

  • 256 int32 header entries
  • followed by uint16 token IDs

Header fields:

  • header[0] = 20240520 (magic)
  • header[1] = 1 (format version)
  • header[2] = token_count
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Total file size:
2 GB