bitsandbytes - LLM Quantization Quick start bitsandbytes reduces LLM memory by 50% (8-bit) or 75% (4-bit) with <1% accuracy loss. Installation : 8-bit quantization (50% memory reduction): 4-bit quantization (75% memory reduction): Common workflows Workflow 1: Load large model in limited GPU memory Copy this checklist: Step 1: Calculate memory requirements Estimate model memory: Step 2: Choose quantization level | GPU VRAM | Model Size | Recommended | |----------|------------|-------------| | 8 GB | 3B | 4-bit | | 12 GB | 7B | 4-bit | | 16 GB | 7B | 8-bit or 4-bit | | 24 GB | 13B | 8-bit or 70…