transformers gguf Llama-3 instruct finetune chatml DPO RLHF gpt4 synthetic data distillation function calling json mode axolotl en dataset:teknium/OpenHermes-2.5 base_model:NousResearch/Hermes-2-Pro-Llama-3-70B base_model:quantized:NousResearch/Hermes-2-Pro-Llama-3-70B endpoints_compatible region:us