transformers gguf text-generation-inference unsloth qwen2 trl sft en base_model:tanquangduong/Qwen2.5-0.5B-Instruct-TinyStories base_model:quantized:tanquangduong/Qwen2.5-0.5B-Instruct-TinyStories license:apache-2.0 endpoints_compatible region:us conversational