transformers gguf merge llama dpo TensorBlock GGUF dataset:jondurbin/gutenberg-dpo-v0.1 base_model:v000000/L3.1-Niitorm-8B-DPO-t0.0001 base_model:quantized:v000000/L3.1-Niitorm-8B-DPO-t0.0001 model-index endpoints_compatible region:us conversational