About this site

I'm James Reagan, an AI engineer in Hawaiʻi. My blog is where I log the lessons learned on the job or through experimentation while building generative AI systems.

You can expect clear explanations, benchmarks, and first-principle thinking you can put to work. I write about:

• Building and scaling generative AI products
• Measuring what matters (speed, cost, quality)
• Developer workflows and tooling that stick
• Security, reliability, and other real-world tradeoffs
• New research translated for builders

No hype, just field notes on shipping real AI products and the art of being a builder.