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GGUF: The Format That Keeps Models on Your Hardware

GGUF is the single-file format that ships models for local inference: a header with a signature and version, key-value metadata, a tensor index, and weights aligned for fast mmap loading. Quantization types with real sizes (8B from 14.96 GiB at F16 to 4.58 GiB at Q4_K_M), the filename convention, and the rule for picking a size against your VRAM or RAM.