transformers gguf merge mergekit Open-Orca/Mistral-7B-OpenOrca teknium/OpenHermes-2.5-Mistral-7B en base_model:cris177/Orca-Hermes-7B-slerp base_model:quantized:cris177/Orca-Hermes-7B-slerp license:apache-2.0 endpoints_compatible region:us imatrix conversational