> Markdown version of [/@thomas-neumayer](https://www.wearedevelopers.com/@thomas-neumayer). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md). --- # Thomas Neumayer Building neurosymbolic AI systems for verified, long-form book generation. ## About Thomas Neumayer builds neurosymbolic AI pipelines. As co-founder and CEO of ExtensityAI, he engineers systems that turn human knowledge into verified, printed books. His framework currently powers the story.one Story Editor. He focuses on the messy reality of long-form generation. When models hallucinate quotes or fall into structural loops, Thomas tackles the problem with a mix of fast neural generation and slow, deterministic verification. He regularly breaks down these exact failure modes—and how to build rigorous release standards—in his talks on long-form AI products. ## Upcoming Sessions ### World Congress 2026 North America · September 23, 2026 San José, CA - [Why AI-Written Books Fail – and How We Made Quality Measurable](https://www.wearedevelopers.com/events/world-congress-2026-north-america/sessions/1896-why-ai-written-books) · 30 min