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Theo Browne: What do we build now?

Theo Browne argues that the leap from tool-calling to orchestration models has made most current developer habits skeuomorphic. Instead of building deeper features, teams should now build wider product surfaces and let AI fill in the gaps, making it viable for small teams to compete with incumbents like AWS.

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The Golden Age of AI Engineering: Codex, Cost Curves, and Agent Loops at OpenAI

OpenAI engineers use the leap from a staged demo that couldn't test its own code to a production agent controlling hardware to argue that AI engineering's real bottleneck is now human attention, not model capability. Codex ships on the same API and open-source format as every developer, with 750 tokens per second at $6 per million output tokens, fast enough to generate real PRs in seconds.

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