Claude output watermarks, a Riemann bound, Meta's open weights - August 11, 2026

Cortech Daily · Aug 11, 2026 · 8m

Anthropic watermarks every Claude output and nudges a Riemann bound, Meta returns to open weights, and a Metabase zero-day, the Ceva Logistics breach and facial recognition on the Tube round out the day.

(0:00) - Intro

(0:20) - Anthropic starts watermarking every Claude output - source

(1:14) - Claude pushes a Riemann hypothesis bound from 41 to 67 percent - source

(2:11) - Meta returns to open weights with Muse Glimmer - source

(2:58) - Dan Luu tests whether dynamic languages really cost fewer tokens - source

(3:46) - OpenAI ships a cyber-trained model and splits Daybreak in two - source…