Anthropic acquired Stainless, the SDK compiler behind OpenAI, Gemini and Llama. The deal hands one AI lab structural leverage over rivals' developer ecosystems.

Anthropic acquired Stainless, the SDK toolmaker behind OpenAI and Google, then shut the hosted products down for rivals. Inside the agentic AI infrastructure play.

Stainless, a New York-based startup, founded in 2022, rose to prominence in the emerging AI industry for automating the creation and maintenance of software development kits, or…