MindStudio has added two new conversational AI models - llama-2-70b-chat and mistral-7b-instruct. This brings the total number of supported models to nine, joining existing options like GPT-3, GPT-3.5, GPT-4, Claude-1, Claude-2, and PaLM-2. Llama-2 handles complex dialog with enhanced reasoning skills. Mistral specializes in casual, relatable chat. With more model variety, MindStudio provides expanded flexibility to match different needs and use cases when building AI assistants.