SDSignal Desk

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Sourced AI briefs in publish order — newest first. Citeable originals live on the homepage under From Signal Desk.

AIOct 2, 2026OpenAI

A model guide for the GPT-6 family

OpenAI’s GPT-6 field manual is less launch theater than ops doctrine: pick Astra, Sol, or Luna, then manage cost, steering, and “done” like production software.

AIOct 2, 2026Google AI Blog

The latest AI news we announced in September 2026

Google’s September roundup crowns Gemini 4 Argon — 1M-token output, Fairwind-gated cyber defense — while packing Live voice, Lyria, WeatherNext 3, and space TPUs into one victory lap.