Tech & AI Daily — Friday, August 21, 2026

Greg Brockman takes expanded control at OpenAI as the lab navigates IPO prep, safety controversies, and a packed release calendar. • OpenAI publishes solutions to previously unsolved math problems, sparking a debate about whether AI is replacing human mathematicians at the research frontier. • DeepSeek launches v4-Flash-Vision-Exp, adding multimodal vision to its cost-competitive API lineup and keeping pressure on OpenAI and Google. • Semiconductor ETF SOXL and big-tech benchmarks QQQ and VGT barely moved as investors hold fire ahead of Nvidia's earnings on August 26. • Enterprise AI spending proves fickle — new data shows companies switching freely between OpenAI and Anthropic, raising red flags about contract stickiness for both firms' valuations.