gguf Mistral instruct finetune chatml DPO RLHF gpt4 synthetic data distillation function calling json mode en dataset:teknium/OpenHermes-2.5 base_model:NousResearch/Hermes-2-Pro-Mistral-7B base_model:quantized:NousResearch/Hermes-2-Pro-Mistral-7B license:apache-2.0 region:us