qwen3-1.7b-uc-v3-bpw3

3-bit compression (lossy; larger perplexity drift than the 5-bit line — see verified ratio below) of Qwen/Qwen3-1.7B — produced by Sipsa Labs (UltraCompress).

• Reproducible, cryptographically verifiable reconstruction: a deterministic decode to the SHA-256-pinned validated artifact (not bit-identical to the original bf16 model).
• Independently perplexity-verified end-to-end.
• License: BUSL-1.1 + Additional Use Grant.

pip install ultracompress

Documentation & verification: https://sipsalabs.com · https://github.com/sipsalabs/ultracompress

Patents pending.