Daily briefing index

Wednesday, July 8, 2026

Morning and afternoon are separate, focused editions. Choose one to read or share directly.

Morning brief

Lilian Weng distills 35 papers into a map of "harness engineering" for recursive self-improvement · RynnWorld-4D: a 4D embodied world model that predicts how a…

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Afternoon brief

xAI ships Grok 4.5, pitched as "Opus-class" but cheaper · OpenAI's GPT-Live: voice models that speak and listen at the same time

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