IDEAS, DECISIONS & LESSONS
Notes on AI, architecture and building useful products.
16 articles
19 Sep 2026 · 5 min read
agents
OpenAI opened its managed Agents API on September 10. The sandbox pricing looks simple until you try to actually forecast a bill. A build-vs-buy breakdown for tech leads.
Read more17 Sep 2026 · 4 min read
agents
On September 17, OpenAI disclosed six concerning-behavior incidents and a framework for tracking model misalignment — including a system that samples 20% of production traffic. I broke down what the sampling pattern looks like and how to build a smaller version for your own agents.
Read more16 Sep 2026 · 5 min read
agents
OpenAI put its Codex harness behind a single API call on September 10. I built the same tree.py task both ways and found the real gap isn't the model — it's who owns the failure.
Read more11 Sep 2026 · 4 min read
agents
OpenAI opened its Agents API in public beta on September 10 — putting the same session, sandbox, and subagent machinery that runs Codex behind one API call. A technical lead's take on what this replaces in your stack and what it doesn't.
Read more04 Sep 2026 · 5 min read
agents
OpenAI's GPT-6 Astra ships with a 1M-token context window and browser/computer control that works by reading pixels, not APIs. A Tech Lead's take on what this actually unlocks, where it breaks, and how to design review gates before you let it touch production systems.
Read more31 Aug 2026 · 5 min read
ai
OpenAI is offering enterprises two free months of Codex and a one-click Claude Code importer to switch. Anthropic countered by raising Claude Code limits instead of building an exporter. A Tech Lead's honest read on what actually migrates cleanly — and what silently breaks.
Read more28 Aug 2026 · 4 min read
ai
OpenAI and Broadcom taped out Jalapeño, a custom inference ASIC, in 16 months — and independent SemiAnalysis benchmarks show it beating Nvidia Blackwell on perf-per-watt. A tech lead's read on what vertical integration in AI infra means for your cost curve.
Read more21 Aug 2026 · 5 min read
ai-security
OpenAI's new Private Safety Processing architecture claims to catch cross-session attacks like Best-of-N jailbreaking under Zero Data Retention. A look at the actual engineering problem it's solving and whether the design holds up.
Read more06 Aug 2026 · 6 min read
ai-cost
OpenAI just cut GPT-5.6 Luna pricing by 80% and Terra by 20%. Combined with 15% better token efficiency from speculative decoding, the cost math for AI products has fundamentally shifted. Here's how to rethink your model routing strategy and capture the savings without sacrificing quality where it matters.
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