Reletter
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CipherTalk

Meg McNulty

Decoding deeptech's biggest trends.

Platform
Substack
PricingFreemiumPublishesWeekly
Issues107Founded4 years agoLast Issue4 days ago
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Latest Issues

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Token prices measure the wrong thing

Late July, Moonshot published the full weights for Kimi K3, free to anyone with the hardware to run them. Three days later OpenAI cut GPT-5.6 Luna by 80 percent, on a model it had shipped twenty-one days earlier.

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Scarcity Is a Systems Architect

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On July 9, 2026, SemiAnalysis published a line that aged badly in record time. In a report on Meta’s Superintelligence Labs, the research firm wrote...

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The Critical Infrastructure Squeeze

Three days after Anthropic launched the strongest AI models in the world, the US government ordered them shut off. Fable 5 and Mythos 5 went dark on June 12. Two weeks later, Commerce quietly restored Mythos for about a hundred US organizat...

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Sovereign Compute

I spent the years before starting Cosmic close enough to the defense and national security side of technology to watch what dependency looks like when it sets in. You watch critical systems be built on someone else’s stack, you watch the im...

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