The biggest lie of our industry: “You need an agent.”
I use more than 50 agents every day to build systems whose workflows should run on deterministic logic.
AgentsAutomationEngineering
Index / Research & Essays
Research & Essays
Research and essays on AI, products, and the way we build by Sebastian Mertens.
AIAI EngineeringAI ForecastingAIOSAgentsAutomationContext EngineeringData AnalysisEngineeringFrontier ModelsProduct DesignProduct DevelopmentResearchSociety
We Are Not Talking About the Same AI
A small group of intensive AI users is moving ahead in what it knows is possible and what it does with models—even as AI use spreads.
AIAgentsSociety
AI Engineering vs. Vibe Coding
Building a hosting product from a problem you can explain
ResearchAI EngineeringProduct Development
The headless product
How agents change the way we use software - case study with ohmyho.st
ResearchAgentsProduct Design
AI Acceleration Forecast: How Will AI Intelligence Evolve by 2028?
A data-backed AI acceleration forecast using 430 model releases to explore how frontier AI intelligence could evolve through spring 2027 and end-2028.
AI ForecastingData AnalysisFrontier Models
How Do I Build an AIOS?
Context engineering for a company that can learn from its own work
ResearchContext EngineeringAIOS