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Notes from inside the systems.
Specific problems with the numbers attached — cost, orchestration, automation, and the failure modes that only show up in production. No predictions about where AI is heading.
The cost of an AI feature is an architecture decision
Why per-token pricing turns ordinary design choices into line items, and how to model the bill before you ship.
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Why your n8n workflow breaks at 3am
The failure modes that never show up in testing: rate limits, partial writes, silent retries, and nobody watching.
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You don’t need a bigger model. You need a router.
Most requests don’t need the frontier model. A routing layer is usually the cheapest performance win available.
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