DX Today AI Daily Brief - Sunday, September 20, 2026

DX Today AI Daily Brief - Sunday, September 20, 2026 Four paid subscribers filed a federal antitrust complaint against Anthropic, OpenAI, Google and SpaceXAI over an alleged agreement to slow frontier model development, and Washington answered fast: President Trump said he will create an AI Force and name an AI czar, while California Governor Gavin Newsom signed an executive order convening an expert panel to weigh an emergency shutdown requirement, and three Senate Democrats demanded an inspector general investigation into a flawed military intelligence product assembled with AI assistance. On the money side, Nscale filed for a New York Stock Exchange listing on a contracted backlog near one hundred three billion dollars that is roughly eighty five percent Microsoft and Anthropic, Anthropic named Accenture its first embedded evaluator in a roughly two billion dollar arrangement, and Sam Altman is set to brief the United Nations Security Council. In models and research, StepFun launched Step 5 Preview, a six hundred billion parameter mixture of experts flagship with open weights promised for October, Alibaba's DAMO Academy open sourced a radiology model that screens one hundred forty six findings from a single abdominal CT scan, and security firm Hacktron disclosed using Claude Opus 5 to chain vulnerabilities into OpenAI staff accounts. Meta shipped Muse for Mac, putting its agent inside native macOS applications, and Samsung laid out its AI and robotics strategy at its Silicon Valley tech forum. DX Today - Your daily AI news briefing, delivered every morning. #AINews #ArtificialIntelligence #AIAntitrust #AIPolicy #DXToday