gguf text-generation ggml quantized q2_k q3_k_m q4_k_m q5_k_m q6_k q8_0 dataset:OpenAssistant/oasst_top1_2023-08-25 base_model:Felladrin/TinyMistral-248M-Chat-v2 base_model:quantized:Felladrin/TinyMistral-248M-Chat-v2 license:apache-2.0 region:us