March 18, 2026Published by Sean Kim on March 18, 2026Categories AI Tools & ServicesMicrosoft 365 Copilot Now Runs Claude Sonnet: How 400 Million Office Users Got Access to Anthropic’s AI — Enterprise Integration Deep DiveMicrosoft just played its multi-model card — and the implications are massive. On March 9, 2026, Microsoft 365 Copilot Claude Sonnet integration went live, giving 400 […]