Anthropic Launches Claude for Word Beta and Changes Claude Code Pricing Model

Anthropic launched Claude for Word in public beta, available via Microsoft AppSource, offering a persistent sidebar add-in that can read, redline, and revise legal contracts directly within Microsoft Word, directly challenging Microsoft's Copilot ecosystem. The company also changed its pricing model for Claude Code subscribers, requiring separate pay-as-you-go billing for third-party integrations like OpenClaw starting April 4, 2026. Community reports indicate cost increases of up to 50x monthly spending, and the OpenClaw creator publicly called the move a betrayal of open-source developers, leading to a temporary ban of the creator's API access.