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The AI Engineer

Owain Lewis

The practical AI newsletter for engineers who build. Every week: tutorials, frameworks, and real lessons to help you ship agents, automate your work, and become the engineer everyone asks for help.

Platform
Substack
PricingFreemiumPublishesWeekly
Issues59SubscribersRead newsletter.owainlewis.com

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Latest Issues

Recent posts by this newsletter. Browse the email archive.

Is Pi better than Claude Code?

I spent last week using Pi as my main coding agent, which was an interesting exercise because Pi is radically different coding agent compared to Claude Code or Codex.

18 days ago
19
0

Six RAG strategies, explained simply (with code).

Most RAG tutorials jump straight to vector embeddings. Half the time, that’s the wrong tool.

a month ago
12
0

How I Use AI To Review AI Code

We're offloading more and more of our coding to AI agents. But AI-generated code has more bugs, security issues, and logic errors than human-written code — and we're generating it faster than any team can review it.

a month ago
7
0

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Authors

The writers behind this newsletter.

  • Owain Lewis

    Software engineer with 15 years of experience as a director, principal engineer, tech lead, and manager. I'm here to help people build and create with AI.

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