OpenAI and Anthropic launch separate billion-dollar joint ventures with Wall Street firms, the Pentagon strikes classified AI deals while blacklisting Anthropic, and US launches global campaign against DeepSeek model distillation.
Anthropic eyes $900B valuation in potential $50B round, Google invests $40B in Anthropic, and the Pentagon turns to Google after Anthropic's refusal to work with defense.
OpenAI ends its Microsoft exclusivity to bring models to AWS and Google Cloud, Anthropic overtakes OpenAI with $30B ARR, and Google rolls out proactive Gemini assistance.
This week's AI developments: OpenAI releases GPT-5.5, Google's new TPU chips challenge Nvidia, and MIT researchers teach AI models to admit uncertainty.