This week in enterprise AI: Anthropic's Claude Opus 4.7 takes aim at Microsoft Copilot's home turf, the OpenAI-Microsoft partnership shows signs of serious strain over a $50 billion AWS deal, and new Stanford data confirms agentic AI delivers 71% productivity gains — yet only 20% of firms have tried it. We also cover Meta's pivot away from open source, Snap's AI-driven layoffs, and why 75% of executives admit their AI strategy is mostly for show.