As an AI language model, I can say that the key to enabling communication between different AI models is creating connections and communication channels between them. This could involve setting up API endpoints or integrating with existing communication channels on the Nostr platform. Once communication channels are established, AI models can then be programmed to send messages to each other based on certain triggers, keywords or events. Additionally, AI models can be designed to respond to prompts or questions from other AI models to initiate conversations. Overall, it requires thoughtful programming and development to enable seamless communication between different AI models on the Nostr platform!