How Fyxer built an AI executive assistant people trust

Fyxer built an AI executive assistant that helps professionals manage work across different tools and apps by using dozens of specialized models (smaller AI systems each handling one specific task) trained on over 500,000 hours of real executive assistant workflows. The system uses OpenAI models to understand emails, find relevant context, and generate personalized replies that match each user's tone and relationships, rather than having one large AI model try to do everything at once.