This briefing covers Anthropic disabling its Fable 5 and Mythos 5 models under a US government export-control directive and the industry pushback that followed, Microsoft AI’s launch of seven MAI models at Build 2026, NVIDIA’s open-weight Nemotron 3 Ultra and Nemotron 3.5 ASR releases, and two open-weight coding models in GLM 5.2 and Kimi K2.7 Code. It also reports the launch of the OpenAI Deployment Company and Partner Network, AI cost management moves from Databricks and Microsoft, OpenRouter’s Fusion API, the launch of Agent Arena, and the reported acquisitions of Anysphere by SpaceX and xAI and of Fin by Salesforce.