gguf text-generation en dataset:openbmb/UltraFeedback arxiv:2405.00675 base_model:UCLA-AGI/Llama-3-Instruct-8B-SPPO-Iter3 base_model:quantized:UCLA-AGI/Llama-3-Instruct-8B-SPPO-Iter3 license:apache-2.0 region:us