▶ Interactive Lab

Weight Layout on Disk (GGUF / SafeTensors)

See how tensors are arranged in a binary model file.

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Header + metadata + tensors. mmap-friendly.

What you're seeing

Both formats are header + tensor index + raw bytes. GGUF embeds tokenizer + hyperparams.

★ KEY TAKEAWAY
Both GGUF and SafeTensors are mmap-friendly: header + tensor index + raw bytes. The whole file maps into virtual memory; pages fault in on access.
▶ WHAT TO TRY
  • Switch between formats to see the layout differences.
  • GGUF embeds tokenizer + hyperparams; SafeTensors needs separate config.