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Engineering notes on LLM routing, gateways, and AI infrastructure.

Three separate lifecycle tracks for an interactive CLI, a managed background server and an optional updater

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Codex CLI’s Background Server: Why It Starts and What Opting Out Stops

Codex CLI 0.157.0 enabled a shared background server for eligible interactive launches. Trace the CLI, managed daemon and updater lifecycles—and the separate controls for each.

Leo Kaka

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A dark blue street map from the QGIS official homepage

QGIS bars AI-assisted code contributions to its core repository

PiRouter Team
Editorial diagram of code moving through tools and verification, with a separate unfinished acceleration component

JetBrains Mellum2.1 turns a fast coding model into an agent worker

PiRouter Team
Editorial illustration of a large archive whose drawers all remain present while only a small subset is illuminated, symbolizing total model weights versus active parameters

Kolibri 1 is a 78B model—not a 3B download

PiRouter Team
Hand-drawn warehouse of sealed sandbox crates, with one narrow network pipe escaping under a wall

DeepSeek DSec runs 3 million agent sandboxes a day. The useful lesson is where the work survives

Leo Kaka
Two different sorting machines deliver the same choice, with different costs and ownership

Jev vs GLM-5.3-Flash: similar accuracy, very different reasons to choose either

Linden Kern
Three permission boundaries for OpenAI Dots: read-only background research, reviewed requested actions, and tasks reserved for a person.

OpenAI Dots can keep working. What can it do—and what counts against your plan?

PiRouter Team
Two labeled panels separate repeatable coding and document work from difficult research tasks that need a separate evaluation; this is not a benchmark chart.

GPT-6.1 Sol vs Astra: move the testable work, keep the hard calls

Linden Kern
Unmodified GPT-6.1 Sol pirouter model card centered on a black background, showing standard input and output rates, 1.05M context, and the complete footer.

GPT-6.1 Sol on pirouter: $2/M input and a listed long-context tier

PiRouter Team
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