#vetted access

Tagged vetted access · show all articles

A corkboard with two faded, long-pinned index cards on the left connected by two lengths of string of visibly different length to a single fresh, brightly colored card on the right, one string still slack and not yet pulled taut

What Changed on September 1 Started Five Months Earlier

OpenAI and Anthropic are credited with debuting the vetted-access machinery behind Astra and Mythos 5.1 the same week they shipped. The dates on each company's own pages say otherwise — and the one program that is new this week isn't the one getting credit.

By Brecht Corbeel · September 16, 2026 · 17 min read

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