bitsandbytes Foundation

license

MIT(OSI)

source

public

core-gated

ungated

MIT license body confirmed. The repository is public and unarchived and builds the whole product, and the README describes no paid tier, enterprise edition or license-gated build beside it, so source is public and the core ungated.

• https://github.com/bitsandbytes-foundation/bitsandbytes/blob/main/LICENSE recorded 2026-08-18

  LICENSE file is the verbatim MIT text

• https://api.github.com/repos/bitsandbytes-foundation/bitsandbytes recorded 2026-08-18

  Repo metadata - license spdx_id MIT, private false, archived false, default branch main - for bitsandbytes-foundation/bitsandbytes.

• https://github.com/bitsandbytes-foundation/bitsandbytes/blob/main/README.md recorded 2026-08-18

  README describes k-bit quantization for PyTorch through 8-bit block-wise optimizers, the LLM.int8() mixed-precision inference path with separate outlier handling, and 4-bit NF4 quantization for QLoRA, with no paid tier, enterprise edition or license-key-gated build beside it.