bitsandbytes2 Introduces Runtime Compression Down to 1.5-2.0 Bits

Tim Dettmers released a runtime dynamic compression framework in bitsandbytes2, compressing models to 1.5-2.0 bits with high quality via per-layer heterogeneous quantization and runtime expert swapping.

2026-09-22 ~ 2026-09-23 · 4 related posts

• Tim Dettmers releases runtime dynamic compression framework, hits 1.5-2.0 bit at high quality — Tim_Dettmers · 2026-09-22
• bitsandbytes2 dynamic runtime compression: per-layer bit allocation plus runtime expert swaps — Tim_Dettmers · 2026-09-22

2 near-duplicate retellings: PMinervini · ricklamers