The Card Arrived by Evening
xAI shipped Grok 4.6 with the full benchmark story on day zero and no model card. Six hours and three named critics later, the card was up — and the first number reviewers pulled out of it was a five-times higher lie rate with no explanation attached. That whole sequence fit inside one day, which makes it a rare chance to watch an unenforced disclosure norm get enforced in real time.
Grok 4.6 release page — xAI's own claims: number one on Databricks OfficeQA Pro V2, and leads on GDPVal-AA, AA-Briefcase and a legal benchmark. Published complete; the safety document wasn't.
Nathan Calvin's…
The skinny
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