Anthropic Just Bought the Developer Tool OpenAI and Google Depended On — Then Shut It Down.

AI First Pod · Jun 1, 2026 · 5m

Anthropic acquired Stainless for $300M+ — the SDK generator that powered every official Claude API library, but also OpenAI's, Google's, and Cloudflare's. Then immediately wound down the hosted product for everyone else. We break down the competitive strategy, preview Microsoft Build tomorrow where agents go production-ready and Copilot goes multi-model, and close out the most consequential month in AI history.