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FineWeb sample-350BT, GPT-2 tokens
Pre-tokenized FineWeb data for language-model pretraining.
Dataset details
- Source:
HuggingFaceFW/fineweb - FineWeb configuration:
sample-350BT - Tokenizer:
tiktokenGPT-2 (gpt2) - Token dtype: little-endian
uint16 - Format: NanoGPT binary shards, version 1
- Total tokens: 361,159,416,052
- Shards: 1 validation shard and 3,611 training shards
File format
Each .bin file contains a 1 KiB NanoGPT header followed by GPT-2 token IDs
stored as uint16. The header fields are:
- magic number:
20240520 - format version:
1 - token count
Usage
These files are directly usable with NanoGPT-compatible shard loaders.
PicoDo expects a single headerless uint16 stream. Strip the headers and
concatenate the training shards locally before using it with PicoDo.
Provenance
This is a tokenized derivative of HuggingFaceFW/fineweb, configuration
sample-350BT. Please consult the upstream FineWeb dataset card and terms
before using or redistributing this dataset.
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