- frank-default-large: GGML_CUDA_FA_ALL_QUANTS=ON is mandatory in the FastMTP build; without it q8_0 KV + FA falls back to a slow path and prefill collapses ~12x (95 -> 1312 t/s at 8K, measured) - frank-default-small: FLASH_ATTENTION_TRITON_AMD_ENABLE=TRUE + pure-python flash_attn (triton_amd) + stub; without it the vision encoder warmup OOMs via torch SDPA