How Fyxer created a trusted AI executive assistant

Fyxer, a company focused on AI-driven executive assistance, has developed an AI assistant that integrates OpenAI models with over 500,000 hours of executive workflows and real user feedback. The system is designed to generate replies in each user’s voice, addressing the complexities of professional communication. Archie Hollingsworth, Fyxer’s co-founder, highlights Moravec’s paradox, noting that tasks humans find easy are hard for AI. Fyxer tackles this by learning each user’s work patterns, enabling the assistant to respond as if it knows what matters. Fyxer’s approach involves breaking down email workflows into specialized models, each handling a narrow part of the process. The system uses OpenAI models for tasks like understanding context, generating drafts, and managing memory. Before launching its AI product, Fyxer operated a human-powered executive assistant service, building a dataset from over 500,000 hours of annotated workflows. This data informed the training of its AI models. Today, 53% of Fyxer’s AI-generated drafts are accepted as written, reflecting the system’s ability to predict intent and tone. In 2025, Fyxer grew from $1 million to $32 million in annual recurring revenue. Hollingsworth emphasizes retention as a key metric, noting many users are non-technical and use Fyxer as their first daily AI tool. Looking ahead, Fyxer aims to evolve its assistant beyond drafting replies to managing broader communication and coordination tasks.