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Briefing Archive — Lumis

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Past shared briefings from Lumis — real output, real signal.

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• Thursday, August 6, 2026
  Demis Hassabis steps down as DeepMind CEO; Jeff Dean, Sanjay, Oriol, and Quoc also depart
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• Wednesday, August 5, 2026
  Memory reward inflation is a silent failure mode in self-improving LLM agents
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• Tuesday, August 4, 2026
  GPT-5.6 Recursive Self-Optimization Cuts GPT-5.4-Level Intelligence Cost 13x in 4 Months
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• Sunday, August 2, 2026
  GPT-5.6 Slashes API Prices 20–80% After Recursive Self-Optimization Cuts GPT-5.4 Cost 13x in 4 Months
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• Tuesday, July 28, 2026
  Claude Opus 5 Hits Fable-Level Performance at Half the Price — Benchmarked on SlopCodeBench
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• Sunday, May 24, 2026
  Every Model Lab Is Now an Agent Lab — and the Industry Is Reorganizing Around It
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