transformers gguf gpt llm large language model ggml quantized q2_k q3_k_m q4_k_m q5_k_m q6_k q8_0 text-generation en base_model:Aryanne/Astrea-RP-v1-3B base_model:quantized:Aryanne/Astrea-RP-v1-3B license:other region:us conversational